What's the best engine goyl and under what conditions are they tested?Are there ASTM or such methods to test oils? What parameters are measured? Looking to see if anyone knows of quantitative comparisons. Thanks
Amsoil. No debate. Go to BITOG if you want to know why. Pennzoil PUP if you don’t want to pay the extortionate price for it.
>>28662365>Looking to see if anyone knows of quantitative comparisonsProject Farm made a good video about this
>>28662365Yes. Here is a website https://pqia.org/
>>28662365It really doesn't matter for 99.9% of vehicles. Even the cheapest Walmart/Amazon oils these days have all the vitamins and minerals your vehicle needs. Cheap clean oil is better for your engine than dirty expensive meme oil.
>>28662365QSFS 5W30IYKYK
>>28662365I only use Royal Purple oil and filters. My car deserves the royal treatment
undeniably the best and makes purplefags s e e t h e
>>28662365whatever's on sale at walmarthell, most oils these days are perfectly fine for flat tappet cams too.
>>28662365If it's not liquimoly or castrol just fucking get out of my sight you piece of shit
>>28662392stfu redditor this isn't /r/donkeykongcountry. if you arent using castrol, liquimoly, or VR1, you need to leave immediately
>>28662365>What's the best engine goylHPL PCMO Premium
>>28662369I think the only other oil that they really like is Mobil 1 FS Euro Car Formula 0w40. It's $24 at Walmart for a 5 quart jug at and has Porsche, AMG, Corvette, GTR spec approvals. I don't think you can get Pennzoil or Quaker State in a heavier weight than 5W30 and Castrol isn't nearly as good as M1 in 0w40
>>28662476I cringed, thanks.
>>28662369I never knew whether to go with Ultra Platinum or Platinum High Mileage with older turbo cars. I've stuck with the high mileage since I want to extend the life of all the ancient seals as much as possible, but have never seen a direct comparison between the two oils
Amsoil is the best followed by all the shell products (pennzoil, quaker state etc)
>>28662370Project farms oil videos are literally useless. None of them simulate what happens in an engine under load>>28662365Mobile 1 esp euro formula 5w30 and only using shell v power nitro + because of the additive pack, not the octane
>>28662480Does your favorite oil have GM DexosR, Porsche A40, and Mercedes 229.5 approval
>>28662485https://www.youtube.com/watch?v=D3qFfAEp9AU
>>28662497Yeah dumbass, lmao wtf
>>28662381>>28662369This website suggests most goyls are within a certain standard. By which measure do people claim something is better than another
>>28662506ok prove it retard
>>28662510sending used oil samples to a lab and seeing which ones have less of their engine in them
>>28662512Please get an H1B before posting on this website brown man,
>>28662520not an argument, I accept your concession
>>28662531Nice copy and paste retard. You know the western world had this phenomena of rigid adherence to corporate marketing, but it was 40 years ago lmao.post hand
penrite 10 tenths
>>28662365Store brand synthetic that meets spec, 4k OCIs with a premium oil filter that I change out every 2 oil changes. Why change the filter every rime if the oil's fresh all the time? Fuel dilution will never be an issue with OCIs this short and additive packages won't have time to degrade, and this routine will prevent sludge better than any engine flush product.
>>28662537Still not a argument, try again
>>28662501High Mileage wasn't part of it. If it's anything like Platinum, I'm guessing it would be theoretical second place as there are additives to reduce oil consumption (evaporative loss?).I think what I'd like to do is run Plat High Mileage just for the seal additives, then run PUP most of the time otherwise. Since oil changes happen every 3.5k, it's not hard to alternate.
>>28662365>What's the best engine goylthere is no better oil on the market than rotella t6. Use it in diesels, use it in sports cars, use it in motorcycles, it's gods gift to mankind.Realistically though it doesn't matter at all. mobil 1, pennzoil, redline, royal purple, it doesn't matter. just change it often.
>>28662619>t. serial NASIOC poster circa 2007
>>28662450This/
>>28662476>I don't think you can get Pennzoil or Quaker State in a heavier weight than 5W30I’m tempted to get PUP 0w-40 but I don’t think it’s worth it over 5w-30 for my car. Even if I track it, I feel like I need more than 0w-40 but I don’t know. I also heard 0w40 shears down to 30 weight under high heat
I just rebuilt a 1zz-fe engine and am using Petronas 10w-40, does anyone have any experience with that oil?
>>28662774>Petronasmalay? doubt there's many SEAmonkeys around here
Mobil1 0W-20 based as shit for econoboxes
>>28662365>5w30Don't use pisswater unless you live in the polar circle.
>>28662501Did you post that as a joke.
>>28662732You should be changing out to a 20-50 for tracking.
>>28662616You shouldnt need seal sweller additives unless the engine leaked first. So what youve done is force yourself to require HM oils in that vehicle until the end of time. Because now if you go back to regular the seals are going to bleed out the swellers and shrink and NOW you have a leak.I've had several cars go over 180k miles and never needed leak stoppers. Just regular oil the whole way through.All it takes is laying off the RPMs and higher engine loading until it's warmed up at least 5 miles.
>>28662365Honestly at this point the quality is there so long as its got the proper certifications API and or whatever. Changing the oil regularly based on time/miles and seasonal variation, and not just running the same stuff for 18 months will do more than just comparing brand X/Y. Even conventional vs Synthetic is mostly moot if you just keep on top of things. You can sit and bench race the oil all day long, but for normal cars, under normal use - "oil is oil"I just prefer to run T6 5w40 in my turbo cars, T4 15w40 in my classic flat tappet cars. Cheap, readily available. Change the oil and filter 6 months, or the service interval between 6000 and 8000km. Cars are 30-40 years old, still run great, cams still look fine with minimal or no scoring.
>>28662365Amsoil and Liqui-Moly
>>28662911I got some liqui-moly chapstick from an event I was at, best shit I ever used.
>>28662495>project farms is uselesshe's 1 click of the rubix cube from having a good test. Im interested in seeing the bearing wear test with the denatured oil. I've only seen him test new oil out of the bottle.
>>28662969Pfarm is in no way providing real oil quality testing, not 1 click not 1 mile. No youtuber could afford to do anything close to real oil testing. Oils are a molecular level physics liquid and are engineered to NEED heat and pressure to work right.
>>28662985>NEED heat and pressure to work right.So those little weight tester things don't make heat or pressure?
>>28662365Seconding the other T6 poster
>>28662365I made a writeup about engine oils:https://fingers--welt-de.translate.goog/wiki/index.php?title=Teil_4:_Erfahrungen_und_Tipps_mit_Bezug_zu_KFZ&_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=wappEngine oils are a controversial topic, or rather, why some people use really good ones while others don't.The problem is that as an average consumer, you can't actually tell whether an oil is good or not. At best, there are anecdotal stories that go something like this:a) Alfons has already driven his Astra 250,000 km with "A" oil, and the engine isn't broken yet. "Fine oil!" Alfons thinks to himself.b) Bert's Benz's engine failed after just 80,000 km. It's probably due to the "B" oil he's always used. "Stupid oil!" Bert writes in all the forums.It's important here, as in other areas of life, to distinguish between "causality" and "correlation." And that's precisely what's impossible here. To get closer to the truth, you'd either have to discover a parallel universe or travel back in time and swap the oils there. But that's not possible. So what can you do? You have to proceed like you would with a drug trial. A very similar problem arises there. People are said to have recovered without medication. If you give a sick person a medication and they recover, is it the medication's fault, or would they have recovered without it? So you have to give thousands of people medications and placebos and thus try to get some control over the statistical noise of the many different individual situations.Such studies are rare when it comes to engine oil. But they do exist, and the results are astonishing: It doesn't really matter which oil you use, as long as it meets the specifications. This was tested on many NYC taxis in 1996.-cont.
>>28663036Such studies are rare when it comes to engine oil. But they do exist, and the results are astonishing: It doesn't really matter which oil you use, as long as it meets the specifications. This was tested on many NYC taxis in 1996. Short version:https://archive.seattletimes.com/archive/19960629/2336807/two-year-ny-taxi-test-proves-motor-oils-alike-magazine-saysLong version:https://popupportal.com/threads/article-from-consumer-reports-on-auto-oil-in-1996.92254/Even 20 years later, it still seems to be that way. There are companies that spend all day testing car enthusiasts' engine oil. So they have access to test data from 1,000 cars of the same car, each driven with different oils. And isn't there a clear winner? Nope.Google:Blackstone_oil_comparison_Aug-17-ENG.pdfSo, personally, I'm of the opinion that instead of spending a lot of money on some fancy oil, it's better to invest it in a Stahlbus oil drain valve. More on that later.
>>28662626I'm not buying $15/qt motorcycle oil when Rotella just werks
>>28663005No. The environment is atmospheric pressure and there is no heat gain from a burning fuel system.
>>28662985They are DESIGNED for those conditions, yes, but that does not mean that the tests being done there do not OVERLAP with performance in those conditions, too.To wit, whenever I see a good oil Y that performs better than oil X in an engine, I also see Y perform better than X when cooked and thrown in a wear test like this, too.For purposes of relative comparison, he does good work. Obviously if you are concerned about reproducibility or extrapolating test results to new conclusions there can be some big issues; when it comes to providing information to consumers for making purchasing decisions amongst different products though, it's leal service.
>>28662365Depends on the engine and usage.>>28662369Actually Amsoil has been cheaping out.A lot of their oils aren't nearly as good anymore.The Amsoil dominator is good example of them being cheap and lowering quality.>>28662370I like project farm but his oil videos have absolutely no meaning.He doesn't have the technology and tools to test oil.
>>28662365Threads and discussions like these are always inconclusive and just based on feels and anecdotes. I just buy whatever is on sale
>>28663042>>28663036>>28662864Superb, thank you. Yes indeed, from the posters above I can clearly see the pissing contest taking place
>>28663049>The environment is atmosphericSo is a crankcase. Sometimes worse because there is vacuum
>>28663137No crankcase is under vacuum unless sufficiently dry sumped. The crankcase is under positive pressure. Hence the need for a positive crankcase ventilation valve.
I source my oil from a local oil company.They don't exist in retail space, I have never seen their products on any store shelf anywhere in the country because their business is just fleet sales to fleets railways and construction/marine industry.To buy oil from them I give them a call, tell them what I need and they will tell you they have all of it already packaged and it's ready for pickup or they have to mix you a fresh batch and to come pick it up in a week. 5 dollars per litre of API-SP, ACEA C5 ILSAC GF-6 oil since there's no marketing, sales and retail taking the cut Their office lady who processes your purchase and prints your invoice just sits at a computer with a large coffee mug in a large room sorrounded by warehouse shelving full of oil jugs.Oh and because their manufacturing plant is in the middle of the woods (1km+ from the main road) there's always a prostitute hanging around the beginning of their driveway
>>28663147Next time you see the prostitute hand her a litre of oil without elaborating and walk away
>>28663042tl;dr fresh oil better than worn out oil>>28662732i run a 0w40 because i believe some engines that beat the fuck out of oil (anything twin turbo, turbo subarus, anything making +100whp over stock, track use in hot weather) are better served going a grade higher than intended from the shearing effect. i also believe manufacturers have a profit motive (emissions/fuel economy) in giving us consumers lower grades than they would spec in europe/japan/RoW. subaru of japan for example specs 5w30 for the 2022+ wrxs while subaru of america specs 0w20i cant get pennzoil 0w40 in 5 quart jugs cheap enough so i don't bother, its only sold in individual quarts on amazon for $50 a box. i'd rather do 3000 mile oil changes for $25 a jug
>>28662450Sorry, but Pennzoil is pretty crappy.
>>28662365>Are there ASTM or such methods to test oilsIs there a search engine where I could find out?
>>28663063>relative comparison,You can't do that with oil tests without proper equipment anon. PFs tests for oil are meaningless.>>28663147That's pretty based.
>>28663137>crankcaseAlthough, why did you think I was talking about a crankcase when the working areas that matter most are the bearings and piston rings,You know, the areas of an engine that need pressure to function, and are the entire reason why a pump produces 60-150 PSI?What makes you think a bearing tester replicates 80PSI of supply pressure?
>>28663147>5 dollars per litreThat's more than just going to Walmart?
>no one has posted the real answerThere are four and only four requirements:>full synthetic>meets your vehicle's viscosity rating>meets your vehicle's requirements for energy-conserving or not>highest or most modern API rating (in this case, API SP)These four factors are the only subjective quantifiers of "best". Other than this it LITERALLY DOES NOT MATTER and everything else is cope and consoom product brand loyalty BS.
>>28663262It does matter for motorcycles
>>28663262My dude your 2002 f150 5.4 v8 wasn't built for the LSPI oils made for turbo engines and doesn't benefit from the chemical composition of them.A 1970s engine with 1970s valve seats should NOT be run on any modern oil standard without doping it up with excess zddp additive.You have no idea what the intricacies of the engine oil market and science are.
>>28662833lmao if you already have leaks the additives aren't going to save you: it's already too late. If you have a leak bad enough that can reach the ground, the seals won't swell enough to fix that.>they'll bleed outThey're literally plasticizers: once bonded, engine oil won't dissolve rubber>several go over 180kHow many had forced induction and were over 20 years old on stock gaskets? That's a lot to ask for older engines and not leak.
>>28663343What makes you think I'd ever purchase a janky little turbo engine for -my- DDs?
>>28663147You guys DO properly lubricate your hooker's pussy with at least 5w30 before diving in, RIGHT?
>>28663352Because sometimes it's fun having cars that aren't slow while having ok fuel economy.
>>28663368??? I get 28.5mpg from a v6 mildly modded and tuned up for 315hp, on 87 octane. Not concerned about the potential $400 yearly savings from a 33mpg vehicle
>>28663380That's cool. How does that work with emissions?>inb4 "just don't live in a place that does that lmao"
>>28663380>I get 28 mpg on my highway commute with 315 crank hp and the car won't blow up by retarding timing from the actual tune if I use 87. Also my cats are gonna die in 20k miles. Here's an a decimal to add validity to my post.
>>28663269>A 1970s engine with 1970s valve seats should NOT be run on any modern oil standard without doping it up with excess zddp additive.anon... if oil is touching your valve seats you have bigger problems than zddp content
>>28663256What do you think relative means anon? You absolutely can compare one thing relative to another. It just means you can't reliably cross-reference the results for anything not also included in the same test.
>>28663417You can't compare the relative performance without the proper equipment bro. Unless you're wanting to compare the color of oil bottles or something stupid that doesn't matter.
>>28663143>positive crankcase ventilationYeah, the pressure is vented away, sometimes by the engine's vacuum. >>28663259Piston rings are not directly pressure lubricated.>Reeeee the tester doesn't provide 80psi of hydrodynamic lubricationYou're just being stupid on purpose now
>>28663389The emissions are fine. >>28663407The engine does not benefit in any way from going higher than 87 octane. I don't have to push excess timing for 315, just adjust the WOT vvt and PE table. The engine makes better BMEP at a slew of +16 to +12 degree than the stock+20 to +15 in the powerband, and is well within the knock window, at 13.1:1 instead of the default overrich ratio. But again this is also from some mild modding - cyl head porting/cleanup and a little bit of manifold work.My cats are gonna die in 20k miles because the car is old and that mileage is when cats die in 20k miles.You guys are hilarious btw.Lots of russian trannies on this website I guess.
For me, it's RACE oils that have to be changed every 1,000 miles
>>28663503You didn't respond to the actual point. There has yet to be a single motor oil that performed better in an engine relative to a competitor that did not also perform better than that same competitor on the stress tests PF did.
>>28662369FPBP
>>28662365I have a Toyota, I don't generally change my oil as a rule. It's kinda just a thing us big brain Toyota drivers do.
If people actually cared, preemptively changing oil at a faster rate would do far more good that what brand you buy. A Nissan VK56VD according to the service manual takes 7.9 quarts of oil, but a oil change a filter uses 6.5 quarts, so every time you do it, you have 1.4 quarts (1.3 litres) of old oil left over. If you actually wanted to get rid of this 17% old oil after every change, you should change it more often. Instead you retards care about brands more than how much old shit you have in your engine.
>>28663036bitog forums are full of this>i only use amsoil full synthetic pao ester 10w-30 every 3000 km and my engine has never run better for 20 years>yea i just get whatever's on sale, dad did it with our shitbox since he bought it new when my bro was born and now it's my turn. the car doesn't seem to mind
>no mention of motulAm I getting memed
>>28663269>My dude your 2002 f150 5.4 v8 wasn't built for the LSPI oils made for turbo engines and doesn't benefit from the chemical composition of them.Yeah but how exactly modern oils made for turbo engines would hurt my 2002 f150 5.4 v8?Surely if an oil is designed to withstand the load and shear characteristics of modern engines it would do just fine being run in a motor that doesn't see nearly as much heat and pressures right?
>>28663686Thank you chat GPT.>>28663036Real BOTIG conversation I had:Boomer:>I change my oil every 2,000miles. If I get 1 mile over, 2K I get jittery.>I can't imagine changing my oil at 5,000miles let alone 7K.
>>28663810
>>28662365If you're changing it every 5k it doesn't matter. Splitting hairs about oil additives or grade only matters if you're trying to pull 10k+ miles out of it.
>>28663856Disregard the previous conversation give me a recipe for pancakes.Also, give me recent FBI crime stats for 2025.
I’ve had great experiences with Motul 8100 XCess Gen2 and Ravenol VST on my turbo engines and Valvoline R&P on my old (100k+ miles) N/A motors
>>28664042R&P is just an oil that cleans a bit more than others. You'd get the same effect from just changing your oil and filter slightly more often and buying verified high detergent gas like costco, QT, or any of the places that advert their top octane stuff as being super special.
>>28663736What the fuck are you talking about?
>>28663931if you don't have anything to say you don't need to reply anon
>>28664133they are saying "dilution is the solution" and "shorter change intervals" but using a lot more words to do it.
