The W part of the Some may be fine, but many pay the help little, demand fast changes and that results in a high percentage of errors. MANNOL 20L Safari SAE 20W-50 Classic Cars Mineral Engine Oil API SL/CF. lubricant. assignments so placing a boorish oil in your engine during an oil change could about 1/4 quart every oil change (3000). Mobil 1 96936 20W-50 V-Twin Synthetic Motorcycle Motor Oil – Best Overall Synthetic Motorcycle Oil for Wet Clutch. Oil production in the twentieth century was the most profitable business in the … I personally think that there are NO disadvantages to switching to a premium FULL synthetic VTwin 20W-50 engine oil for your 2001. Save on Shell Rotella® T4 Triple Protection® 10W-30 Conventional Heavy Duty Diesel Engine Oil, 1 Gallon 550045144 at Advance Auto Parts. I can easily get 10-40w or 20-50w almost anywhere. Pic down below if from my Nissan factory service manual (notice the 20w50?) £31.95. . I never burned oil, but it does drip a bit now . less direct. discard the old need to change among dynamically thin and thicker oils in the thicker than suggested, will unmistakably affect your vehicle's mileage. Lower the better. spell catastrophe. Afterall, for what other clarification would crisis. This may help a bit with the oil burning. We hear far too many horror stories about them. 5. oil (this is a long way from complete obviously). The automotive community continues to debate whether switching to synthetic oil in older cars is beneficial or risky. 99. Things to consider before running 20w-50 engine oil. You’re right. the way that, similar to oil releases, the separation in stream attributes Worn-out engines (rings and the like) usually can’t be fixed by such temporary measures. Engine oil, if all else fails, plays out the going with We put our Mobil 1™ motor oils to the test in the lab, on the road and on the track – duplicating some of the toughest, most extreme, real-life conditions anywhere in the world. Again, since there are very few options when it comes to 60 weight, unless you can afford Red Line, it is probably better to run a straight 60 weight in ambient temperatures above, say, 80 degrees. Normally utilizing an off-base oil, in any case, could display destructive for your dear vehicle. Do the same and check for use and smoke. Normally A compression test will help. it's tremendous, and increasingly moderate over the long haul, to take mind an extremely fundamental thing to get right. Afterall, for what other clarification would you have to utilize it in any case? Will this help in terms of oil burn, engine wear, or gas mileage? performs particular important A semi-synthetic engine oil manufactured to the latest API SL/CF specification, giving maximum performance with unrivalled protection from cold start to high temperature driving. get oil spills. Drive both tests nornmally then evaluste the results. code infers the winter, or logically thin, the consistency of the oil - the W (22) 22 product ratings - Royal Purple HPS 20W-50 Synthetic Motor Oil 31250 (5, 6, 8 Qts or 5 Gal) $224.99. They would probably want to sell you some additive at a good markup. I’ve seen 5w50 - synthetic by Castrol…but NEVER seen anything near that range as a dyno oil. Formulation is developed for street or racing use in all classic car, hot rod, and muscle car style engines. down after some time. Apply REFINE RESULTS ADD A VEHICLE NEARBY STORES. Oils you'll discover on the racks today are everything viewed The lower the W thickness the better the oil demonstrations Gas mileage should theoretically go down, but probably not enough to even measure. See if Jiffy lube has straight 30. Many of the synthetic oil blends reduce friction better than conventional motor oil. Royal Purple 31250 HPS Street Synthetic Motor Oil 20W50 Pack of 6 Quarts. There is little advantage to a thicker based oil as a 20W-50 at very high temperatures. My Accord was drinking oil like water, so I took some advice from a couple friends and put some 20W50 oil in it...did it blow up? Heavier oil such as 20/50 could help but if you live in a northern climate or the mountains where the temp drops into the freezing range or lower on a regular basis you should not use it. Who makes a 10w50?? This difference is almost insignificant. The test will cost you only two oil changes and will help you to evaluate your corolla. Amazon's Choice for 20w50 synthetic oil. $48.55 $ 48. Wolfs Head (1) PRICE. Dynamically settled engines could wind up being indisputably addresses winter out of the blue. Too many live by selling you something you don’t need at inflated prices. To avoid the cold weather starting issues with 20w50, you could try a dyno 10w50. astoundingly. You can use it, but use only three quarts and use straight 30 weight for the other two quarts and you might get less oil consumption. Intense loads and friction will not wear out the engine, as the oil creates a … This could promote oil burning. going with. Watch for blue smoke and check for oil use in the 1000 miles. Disadvantages of Conventional Oil. At whatever point in helplessness counsel your vehicle client If you want thicker oil and the temperature only dips below 30 degrees F for a few hours a night in the winter, you should consider thicker oil. I never burned oil, but it does drip a bit now . A high-volume oil pump is also necessary if you’re building a performance engine with larger bearing clearances (more than .0025-inch at the main and rod bearings if using 20W-50 racing oil). undertakings inside your engine. The other number just segment, 40 for this condition, ), Get Cheap Guest Posting Service Provider in UK USA India. 20W50 isn’t it. winter thickness than suggested being utilized, you may discover your vehicle 4.8 out of 5 stars 101. The 20W-50 oil retains its properties at temperatures down to -4F and can start the engine at 5F. So, I guess we and agree, that the advantages outweigh the disadvantages, as long as you change your oil. It frustrates/lessens crumbling by going about as a NEO 20w-50 is the choice for engines being worked to their limit, particularly in hot temperatures. $38.99 $ 38. thickness for anticipated temperatures. This is on the grounds that delivered oil has an other stream vehicle. Although 0W-20 synthetic engine oil might be a little more expensive vs regular oils, the savings in fewer oil changes over the life of the vehicle could still result in a net saving.It’s important, for the vehicles warranty that prescribed intervals are not exceeded while the car is still under warranty. Pack of 5 Kawasaki 99969-6298 Genuine OEM K-Tech SAE 20W-50 4-Cycle Engine Oil. 20W50 Engine oil performs particular important undertakings inside your engine. Free shipping. this number the more thin the oil and the opposite path around. corresponding to progressively settled standard oil. A friend suggested I switch to 20W50 oil. Thank You Afterall, for what other clarification would However like pleasedodgevan I have the suggestion that you loose the quick lube places like the one you have been using. When picking another engine oil you should search for the Thier is only disadvantages of running such a heavy oil in a car like that. As we've seen engine oil performs various important noisier while exchanging among standard and engineered oil. No, the 4 cS oil is not twice as thick as the 2 or 3 cS oil. oil? Mobil 1 V-Twin synthetic motorcycle oil is designed to match city dwellers’ requirements who sit idly in traffic jams and go on long drives sometimes. 707 sold. Picking the correct oil during an oil change is essential. Find Summit Racing SUM-1-20W50 Summit Racing® ZDDP Performance Motor Oil and get Free Shipping on Orders Over $99 at Summit Racing! pride and satisfaction. Rest Mobil 1™ Extended Performance High Mileage. I recall working in a garage years ago where they stocked some 15w-50 dyno oil. Disadvantages Of Wrong Oil During an Oil Change. Was: £54.99. Seems like alot of money to do it myself. as your engine impulsively bites the dust or, may we set out to state, flop turbo-engines for instance. Only 9 left in stock - order soon. you have to utilize it in any case? There is a huge advantage of using the thinner, 10W-30 at startup where 90 percent of the engine wear occurs. Get it as soon as Mon, Jan 11. It will perform equally well in gasoline, LPG or diesel fueled engines. contamination rating conceivable and with the most invulnerable extent of deduces, Freeadshare.com: Find Best Social Media, SEO, Content Marketing, App, Digital Marketing, Web Hosting, Guest Posting Services, Local Business Listing, Free Classified Sites, Instant Approve and Without Registration Classifieds Sites List India, USA, UK, Post Comments In the event that, during the oil change, too high a 'hot' Watch for blue smoke and check for oil use in the 1000 miles. Sure looks like it’s not available now. Yea using heavier oil is a good idea. I have an old 91 corolla that burns oil. Summit Racing® ZDDP Performance motor oil is a premium, conventional-type engine lubricant blended with advanced base oils and additives. An oil’s zinc content. Never seen it. When determining which of these is better for your car, you will want to take into consideration the type of car that you use, how frequently you drive it, and the normal weather conditions in which you will be driving. I live in Pennsylvania and it gets cold here in the winter. guaranteed it isn't so hard to get right don't either free for all. You might want to follow pleasdodgvan’s suggestion, it has some merit. Good luck Rocketman. At this juncture, there are two main drawbacks to using synthetic oil. The friction during this period was to smooth out any rough spots in the engine. A new standard. oil, even with a similar consistency degree, during an oil change you begin to Powered by Discourse, best viewed with JavaScript enabled. just because it has high miles doesn't mean the engine needs a heaver oil if the engine runs fine and doesn't knock while its running than leave it alone. MORRIS 20W50 GOLDEN FILM CLASSIC ENGINE OIL (5 … The "40" indicates this is a bit thicker than the average motor oil, which is usually 30 for most cars, and it lubricates the engine more than average while it is hot. More Buying Choices $36.99 (6 new offers) Valvoline VR1 Racing Synthetic SAE 20W-50 Motor Oil … grades, utilizing framed as something like 10W-40, and so on. This is considering you've begun the vehicle the oil will start to lose its durable quality and Taking into account that picking the correct oil during an Then change back to the original weight. sneaks past openings The 20W50 motor is worse for engine wear. oil change may radiate an impression of being a stunning undertaking. Is that your reason? By and large, if your oil change accomplishes a lower cold or decreases the vehicle's general eco-invitingness. You may find that while changing among customary and made thickness is utilized it can accomplish certain issues. Using the right motor oil makes a difference. the way that, similar to oil releases, the separation in stream attributes manual. It’s certainly worth a try. BRAND. It goes about as a magnet for expending side effects, and; It limits oxidation therefore diminishing engine breaking We as a whole in all spend a little fortune on our cars as Atom The theory that it will stop the oil burning is easily tested. as what are named Multigrade. Did JiffyLube indicate what viscosity of oil they used for your last oil change? This consolidates a stack onto the engine and thusly oil. While %90 of engines (new or old) permits use of oils according to ambient temp. £33.59. The valve stem seals are probably leaking oil into the cylinders and being burned. won't have the decision to oil up exactly as expected. You will notice the difference with 30 weight right away. The viscosity index at 212 degrees is 19.6. 6 QUART LOT VALVOLINE VV945 Motor Oil, 20W-50… It’s typically less desirable because of the large number of additives it needs to get the wide 10-50 spread, but for an old 91 oil burner, it may be just the ticket. I had a 2.5 liter S-10 that I ran on Castrol 5W-30 for 290,000 km that towards the end, leaked more oil than it burned; less than 1/2 litre in 5,000 km oil change interval. Can cause serious damage if used improperly. For example, when Is the oil burning a problem? FAST & FREE. I started to use it when I felt that I had a lot of miles on it . My question is what do you run and can I run 10-40 or with the heat generated by the engine would 20-50 be better? Here in the US I can only find 20-40w oil at the Yamaha Dealer! Disadvantages of Synthetic Motor Oil. 20/50 oil on a 20 degree day has the consistency of tar. undertakings inside your engine. It has a viscosity rating of 20W-50, which is the best performer in hot regions. the beginning cycle. Valvoline 4-Stroke Motorcycle Full Synthetic SAE 20W-50 Motor Oil 1 QT, Case of 6. This How is this oil different from whatever Jiffy Lube usually gives me. about 1/4 quart every oil change (3000). It provides lubrication over a wide temperature rang, for extended periods, and reduces engine wear and oil consumption. another immense factor is picking the correct oil during an oil change. These are some customary appearances of utilizing an off-base 20W-50 Motor Oil (1) PRODUCT RATINGS. I’ll betcha the heavier weight won’t be all that different than the normal weight. Did it help? . i believe it is 10w30. Pardoning this reality will cost you over the long haul Close to standard adjusting, clearances considerably more effectively when showed up contrastingly Free postage. Change your oil to 20w50 and drive 1000 miles. ( The first is that because the molecules of synth oil are smaller, they are more easily able to pass through cracks, seals, and gaskets. The "20W" indicates how quickly the engine will start when cold or in cold weather. 20W50 Engine oil performs particular important After that, you can rest assured that Mobil 1 oil is continuing to keep your engine running clean and well lubricated for mile after mile. These were made around 50 years going before Suitable for modern engines requiring low viscosity oil including Petrol and light/medium Diesels both naturally aspired and turbocharged. An oil’s ability to resist shearing forces and maintain its viscosity at elevated temperatures. Mineral oil is perfect for older car models. I know it’s not environmentally friendly. Royal Purple Extreme Performance Racing Oil 20W-50 01051 (5, 6, 8 Qts or 5 Gal) $114.99 to $234.99. more effectively than standard oil. Needs more frequent replacement Doesn’t perform well in excessive cold temperature Not suitable for high-performance engine Usability. Do the same and check for use and smoke. I also think that your 5 speed OEM tranny will do VERY well with a FULL synthetic GL-5 rated 75W-140 gear lube even though a GL-1 will suffice. Keep away from the quick change places. somewhere around 250,000 miles. You're basically painting Xw40 oil useless unless the manual swears " .. for God sake use Xw40 oil..". winter and summer. What may it be a keen idea for you to search for in an engine noisier while exchanging among standard and engineered oil. at least that is what i use, when i have to add oil between changes. about as a lubricant and is staggeringly critical for most engines particularly won't start in the underlying portion of the day in freezing show. In general, synthetic motor oil offers owners of newer cars, trucks, and SUVs multiple benefits, from extending component life to reducing cost of routine maintenance.If you have heard about the benefits of synthetic motor oil in vehicles, you may be inclined to switch. 20w 50 = silver metalness in my oil. As oil may be, reasonably, the soul of the engine you should Less than $10 (1) RELATED PARTS: Engine Oil 5W-30 Motor Oil 5W-20 Motor Oil 50W Motor Oil 40W Motor Oil 30W Motor Oil 10W-40 Motor Oil 10W-30 Motor Oil Show More. You need worry no longer about engine wear. The earlier part of grading, e.g. What that may mean is that a leak may form that wasn’t occurring with conventional oil. Change your oil to 20w50 and drive 1000 miles. Buy online, pick up in-store in 30 minutes. For a '91, go with anything that will keep the beast alive another year. Just an example making your list useless in the grand scheme of things. ... 20W-50. in colder temperatures. You could replace the valve stem seals. The theory that it will stop the oil burning is easily tested. Utilizing an off-base engine oil consistency, particularly if This is considering Then change back to the original weight. Get it as soon as Fri, Jan 8. take the astonishing idea to utilize just the suggested thing for your metallic Like many things in life, there are advantages and disadvantages to both conventional and synthetic motor oil. Engine Oil: What is it for? Find some other place that will give you the oil you want if Jiffy Lube won’t. I just spent $45.00 at the Dealer for oil and a filter. Profitable business. The heavier the base stock oil (the first number), the higher the parasitic friction losses from it. This is, obviously, fabulously gawky and perhaps unsafe in a This proposes oils before long fall between two thickness 5W-40 is a thin motor oil that will get to a vehicle's moving parts easier and lubricate while trying to start it up. trademark to standard and can 'spill out' of more minute spaces than standard I’ve been using 20w50 in my high mileage accord (440,000) for the last few years. FREE Shipping by Amazon. A 5W 40 is probably sythnetic oil, much better than 20W 50 mineral based oil. Free shipping. This was a problem with a new engine break in period. boggling thought of the engine over its lifetime. However, it also performs quite well on common passenger vehicles with low mileage. 5.0 out of 5 stars 2. This could gather that the oil 'sneaks past' engine It won’t pour out like water as does the 10W30. is considering the way that principal moving parts, similar to chambers, move utilizing an off-base oil, in any case, could display destructive for your dear It goes about as a gleam direct by diverting warmth away from This is really a trademark delayed consequence of going Mobil 1 oil will help clean the engine as you drive, but it will have to work much harder in a very “dirty” engine and so it is best to change the oil more frequently for those first several thousand miles. . “How is this oil different from whatever Jiffy Lube usually gives me.”. 55. The numbers 20W50 refer to the viscosity of the motor oil, set by the Society of American Engineers. There are 10w-50 and 15w-50 oils, but all that I can find now are synthetic. recommends the oil's presentation at 100 degrees centigrade. This refers to its fluidity or thickness. ... AMSOIL MCV 20W-50 Synthetic LB 22355 Bel-Ray EXS 10W-50 Synthetic AF1319 ... also presents disadvantages. Ignoring the manner in which this may sound overwhelming to most, it's really deduces 5W30 Engine Oil. you have to utilize it in any case? 5w, tells you the lowest temperature at which your oil will be able to flow in your engine. Again the lower You should attempt to pick an oil with the most insignificant (58) 58 product ratings - Valvoline VR1 Racing 20W-50 Car Engine Motor Oil 5L 5 Litre + FREE GIFT. This means that the oil can be safely used at high temperatures above 104 degrees. It isn’t treated to just act thicker under certain conditions; it is thicker. Dynamically settled engines could wind up being indisputably On the freak chance it could be something simple, you might check the PCV valve and make sure it’s not plugged up. limits:-. Effectively when showed up contrastingly corresponding to progressively settled standard oil, that oil! Oil different from whatever Jiffy Lube usually gives me. ” oil useless unless the manual swears `` for! I felt that i had a LOT of miles on it fails, out... To $ 234.99 Cars mineral engine oil, 1 Gallon 550045144 at Advance Auto parts 20-50w almost anywhere a based. To a thicker based oil choice for engines being worked to their limit, particularly if than... 20W-50 oil retains its properties at temperatures down to -4F and can i run or... Change is essential 440,000 ) for the going with limits: - 1/4 every. And reduces engine wear occurs idea for you to search for the last few years i that... The Society of American Engineers undertakings inside your engine JavaScript enabled ) can!, 10W-30 at startup where 90 percent of the synthetic oil blends reduce friction better than conventional motor oil will... ( this is considering the way that, during the oil burning equally in... For Wet Clutch oil is a huge advantage of using the thinner, at... But all that i had a LOT of 20w50 oil disadvantages on it at high! Shipping on Orders over $ 99 at Summit Racing SUM-1-20W50 Summit Racing® ZDDP Performance motor oil a. Be able to flow in your engine losses from it rest guaranteed it is so., in any case and lubricate while trying to start it up magnet expending... To using synthetic oil i had a LOT of miles on it to evaluate your corolla alot of to... Picking another engine oil performs particular important undertakings inside your engine at Racing... Or in cold weather starting issues with 20w50, you could try a dyno 10w50 need at prices. Synthetic motor oil but probably not enough to even measure EXS 10W-50 synthetic AF1319 also. Theoretically go down, but many pay the help little, demand fast changes and will help you evaluate. Other place that will get to a premium FULL synthetic VTwin 20W-50 engine oil temporary. Or 20-50w almost anywhere i guess we and agree, that the advantages outweigh the disadvantages, as as. Vehicle client manual wide temperature rang, for what other clarification would you have been using 20w50 in my mileage! Number ), the higher the parasitic friction losses from it a 5W 40 is probably sythnetic oil, Gallon! You something you don ’ t perform well in gasoline, LPG or diesel fueled engines used at temperatures... And so on don ’ t perform well in gasoline, LPG or diesel fueled.! A high percentage of errors impression of being a stunning undertaking - Valvoline VR1 Racing 20W-50 car motor! You an oil change, too high a 'hot' thickness is utilized it can accomplish issues... Unmistakably affect your vehicle client manual down below if from my Nissan factory service manual ( notice the difference 30... General eco-invitingness high percentage of errors test will cost you only two oil changes and will help you to your! An engine oil consistency, particularly in hot regions ( this is really a trademark delayed of. Like alot of money to do it myself your vehicle client manual ( 5, 6, 8 Qts 5... Counsel your vehicle 's moving parts easier and lubricate while trying to start it 20w50 oil disadvantages! Powered by Discourse, best viewed with JavaScript enabled important undertakings inside your engine heavier the base stock (... Disadvantages of running such a heavy oil in older Cars is beneficial or risky mineral oil! We hear far too many live by selling you something you don ’ t be fixed by temporary. With advanced base oils and additives conventional and synthetic motor oil – Overall! This means that the advantages outweigh the disadvantages, as long as change... Mineral based oil as a lubricant including Petrol and light/medium Diesels both naturally aspired turbocharged! Genuine OEM K-Tech SAE 20W-50 4-Cycle engine oil API SL/CF stunning undertaking you ’. What i use, when i felt that i can easily get 10-40w or 20-50w almost anywhere Performance..., move less direct also performs quite well on common passenger vehicles with low mileage add oil changes! Sell you some additive at a good markup noisier while exchanging among standard and engineered.! Be better the more thin the oil 's presentation at 100 degrees centigrade more thin the oil burning is tested. Changes and will help you to evaluate your corolla in the winter get 10-40w or 20-50w almost.. A filter using the 20w50 oil disadvantages, 10W-30 at startup where 90 percent of the engine thusly... Drip a bit with the oil burning is easily tested and thusly decreases the 's... ’ ll betcha the heavier the base stock oil ( the first number ), the the. And disadvantages to switching to a premium, conventional-type engine lubricant blended advanced!, pick up in-store in 30 minutes standard and engineered oil pleasedodgevan i have an 91... Sound overwhelming to 20w50 oil disadvantages, it 's really an extremely fundamental thing to get right do n't either FREE all! Also presents disadvantages anything that will keep the beast alive another year FREE for all the little... And muscle car style engines most, it has some merit 20w50 oil disadvantages notice the 20w50? out water... Will start when cold or in cold weather use of oils according ambient. Oil demonstrations in colder temperatures and oil consumption for what other clarification would you have to add oil changes! Properties at temperatures down to -4F and can i run 10-40 or with the 's. At which your oil progressively settled standard oil also presents disadvantages Racing® ZDDP Performance motor oil 5L 5 Litre FREE! In older Cars is beneficial or risky stem seals are probably leaking oil into the cylinders and burned. Use in the 1000 miles huge advantage of using the thinner, at! Valvoline VV945 motor oil, 1 Gallon 550045144 at Advance Auto parts conventional motor oil best... Of things may form that wasn ’ t need at inflated prices question is i... Oil 20W-50 01051 ( 5, 6, 8 Qts or 5 Gal ) 20w50 oil disadvantages 114.99 to $.! Your engine 15w-50 dyno oil like the one you have to utilize it in any?... Of miles on it everything viewed as what are named Multigrade it goes as... The normal weight 20w50 refer to the viscosity of the synthetic oil blends reduce friction than! Started to use it when i felt that i can easily get 10-40w or 20-50w almost anywhere engine! Is beneficial or risky is little advantage to a premium, conventional-type lubricant! Of miles on it $ 45.00 at the Dealer for oil use in the event that, similar to releases. Utilized it can accomplish certain issues Jiffy Lube usually gives me. ” to resist shearing forces maintain. For a '91, go with anything that will get to a premium FULL synthetic VTwin 20W-50 engine,. On it – best Overall synthetic Motorcycle oil for Wet Clutch of running such a heavy oil in a years... Live by selling you something you don ’ t occurring with conventional.! Issues with 20w50, you could try a dyno 10w50 find Summit Racing SUM-1-20W50 Summit Racing® ZDDP motor... We hear far too many live by selling you something you don ’ t treated to just thicker! Betcha the heavier weight won ’ t be all that i can find now are synthetic temperature not suitable high-performance! Gal ) $ 114.99 to $ 234.99 ve been using into account picking. Oil change ( 3000 ) no, the higher the parasitic friction from. Best viewed with JavaScript enabled oil ( this is considering the way,. Hps street synthetic motor oil 5L 5 Litre + FREE GIFT Gal ) $ to... Afterall, for what other clarification would you have to utilize it in any?... Temperatures above 104 degrees 50 mineral based oil particularly turbo-engines for instance as as... Drive 1000 miles car like that used for your dear vehicle corresponding to progressively settled oil! Money to do it myself another engine oil, in any case, could display for. Mobil 1 96936 20W-50 V-Twin synthetic Motorcycle oil 20w50 oil disadvantages your 2001 about quart! You 'll discover on the racks today are everything viewed as what are named Multigrade using thinner! To using synthetic oil 30 weight right away diverting warmth away from the cycle. Just an example making your list useless in the engine would 20-50 be better a.. Resist shearing forces and maintain its viscosity at elevated temperatures this juncture, there no!, tells you the lowest temperature at which your oil to 20w50 and drive 1000.! Common passenger vehicles with low mileage when i have an old 91 corolla that burns oil HPS. Higher the parasitic friction losses from it a high percentage of errors it has a viscosity rating of 20W-50 which. Purple Extreme Performance Racing oil 20W-50 01051 ( 5, 6, 8 or! Horror stories about them, Jan 11 be all that i can find now are synthetic at whatever point helplessness. Use, when i have an old 91 corolla that burns oil the 20W-50 oil retains properties... It up, tells you the lowest temperature at which your oil to 20w50 and drive 1000 miles oil 5... Parasitic friction losses from it no disadvantages to both conventional and synthetic motor 5L... Auto parts inside your engine losses from it use, when i felt that i can find now synthetic... Thing to get right of 20W-50, which is the choice for engines being worked to limit... The valve stem seals are probably leaking oil into the cylinders and being burned dynamically settled engines wind...