9 Best Synthetic Oils (And 5 Worst That RUIN Your Engine)
Video Overview & Insights
Engines don’t die from age; they die from bad oil. Some brands quietly destroy your car long before you hit 100,000 miles. Others protect it like armor. In this breakdown, we reveal the 9 best synthetic oils that keep engines running smoothly and the 5 worst that can slowly damage them.
Before you buy random parts or approve a vague repair estimate, use the Check Engine Confidence Kit to understand what's actually urgent, rule out the cheap fixes first, and ask for the test; not the guess:
https://gumroad.com/a/80519267/grkvra
Stop guessing when the check engine light comes on. The Check Engine Confidence Kit gives you a clear playbook, maintenance checklist, and repair shop question guide so you can understand the issue, check the cheap basics first, and avoid approving vague repairs without real answers.
Grab the CHECK ENGINE CONFIDENCE KIT now https://gumroad.com/a/80519267/grkvra
After the 80's I'll never use Pennzoil. Absolute Garbage ..
📚 CHAPTERS:
0:00 Intro
I have used Stanley Lubricants on my BMW & Toyota fleets here in UK we service every 8,000 miles. Most of our hire taxi fleets go above 400,000 with the same engine and still smooth and low engine noise. Good oil does matter most of the oil in UK is blended in UK for profit and the formulas end up with low quality oil and expensive because of branding The worse oil is Castrol and Shell just a marketing fad. Best to get oil that is blended in country it’s produced because the oil quality really matters
0:21 Synthetic Oils Worth Buying
0:23 Buy #9: High-Heat Engine Protection
0W weight oil is there for one reason and one reason only. To manipulate the EPA testing regime. by using a super thin oil the internal frricion is reduced and the milage during EPA testing is increased. BUT, It does NOT help enine wear. All tests that have truly measured this stuff shows that it is not as good as oils with a higher base viscosity. Don't use it! Use a 5W or a 10W base viscosity oil. And stick with the known good brands, of which there are many. If it comes from Dollar General only, it is probably not a good bet!
1:34 Buy #8: Balanced Daily Protection
2:51 Buy #7: Clean Engine Synthetic
I like how you ignore the dexos cert on supertech....
4:08 Buy #6: Long-Drain Protection
5:37 Buy #5: Performance Engine Oil
I don't use Valvoline after getting ripped off at one of their oil change places.
6:57 Buy #4: Heavy-Duty Synthetic
8:21 Buy #3: German Engine Protection
When you do a video on oils, probably a good idea to actually show the oil rather than a bunch of random videos of guys playing with cooling hoses. Makes you look like you don't give a crap about your content.
9:54 Buy #2: Diesel-Grade Synthetic
11:28 Buy #1: Maximum Synthetic Protection
i use Walmart Super Tech motor oil - it is APi SQ, iLSAC GF-7A Dexos-1 Gen 3 rated - better than what this video recommends. i meets the highest standards for modern engines at a value price.
13:29 Synthetic Oils to Avoid
13:34 Avoid #5: No-Name Budget Oil
do you have to stick with just one of those best brands forever or is it safe to switch between them at every oil change
14:40 Avoid #4: Fake Full Synthetic
15:57 Avoid #3: Missing Oil Certifications
Best one is amsoil, i love that product apart fron valvoline restore and protect i used once to clear my engine from sludge
17:13 Avoid #2: Clearance Shelf Oil
18:24 Avoid #1: Wrong Oil Viscosity
It "IS" because they ARE NOT real 100% synthetic motor oils! At best, they are synthetic "Blends" if that.
19:49 Final Synthetic Oil Warning
Oil certifications are at SQ now
More User Perspectives
I find it suspicious this video is only 6 months old and uses out of date certifications. The latest API certification is SQ, not SP. and the latest ILSAC certification is GF-7A, not GF-6A.
Also, the warning about High Mileage Full Synthetics seems unsubstantiated. I can find nothing that supports the high mileage full synthetic oils being “watered down” or being blends.
Amsoil Signature Series is THE BEST out of this lineup!!!!
@briantaylor6030проплачений імбецил
@ДмитроБарабаш-д5фRight oil for the application is more important than brands name..
@constantinciudin6003Sheaffers oil is the BEST!! Then prolube for the additive!!
@SINCITYPATRIOTPennzoil Ultra Platinum is now ILSAC 7 and API SQ.
@boatlover18751991 Nissan Pathfinder 4x4 with 230k. I have used Amsoil since 10k. I did the compression tests then I switched over to Valvoline Restore and Protect 4 oil changes ago. Probably do a few more oil changes with V R&P and check compression and mileage again. I will be curious as to any changes.
@jackshrader4161This AI voice has sure opened up a lot of engines.
@srhitchcockI think we can all agree that amsoil is overpriced and overrated.
@kyarbrough530277,000. miles on a Toyota Highlnder base 4 cylinder using Mobil 1.
@NormanSilverCastrol doesn't get black and the bearings look like glass yet it's number #9 😂 oil is oil. Change it every 3000 not this 20k garbage there's no oil that won't break down after 20 thousand miles. Think about payloads, short trips, extreme cold, extreme heat, all those factors. This clown literally used all 9 oils LMAO yeah ok. Bottom line oil is oil. Change it every 3 thousand miles and use a synthetic filter. My 2003 Dodge ram war rig has 175k on it and I use mobil extended performance.
@Mousiemose25Mobil 1 is the very best
@GaryGrosvenor-l9rAmsoil Dominator is powerfull.
@Bossloop2010-jk5zlI just changed oil and filter on 24 ram 5.7 because the dealer charges obscene amount.
Fckn filter was leaking ,removed by hand. They use high school skids to do oil changes and charge 420$
Purple rhymes with durple!
U foolish mortals!😮
Valvoline is amazing, my go 2
@morrisdennisUntil recently, finding VW compatible oil for my 1.4T 2021 Jetta was a pain. Only 2 companies sold the 0-20 synthetic required for use. Castrol Edge has a compatible oil as do several others. Mobile1 has become hard to find. That's fine as the Castrol costs $3 - $5 less per bottle. I just top off. The dealer does oil changes as my condo doesn't allow such things in our parking lot and my car dealer isn't that bad.
@BobTaylorCruisingMobil super 5w 30 engine oil go
@mithunatp1638That slight tic is not from worm lifters if it went away it’s carbon otherwise it wouldn’t go away! But the carbon will and yes I use rotela t-6 in all my dd-15 and it out performs deli what we used in the old days to hard on seals in gas engines very high detergent stay away from turbos unless diesel engine
@richardalletag1129Then there is shafer
@richardalletag1129Most vehicles operate at standard operating temperature regardless of outside temperature
@richardalletag1129Most mechanics don’t know chemical compounds just hearsay opinions and lack of maintenance failures see what they put in there cars pickups then what do they run in there race cars and-dune buggies motorcycles and diesel engines !
@richardalletag1129I doubt the guy narrating this has ever touched a valve cover.
Fun to watch but full of bogus info.
Lol ya so it's this easy W means winter 0W means the oil will flow at -40f you go by the temperature you live in tighter tolerance that's just crap!!!!! So all cars trucks use 0-20.. lol that's a JOKE that's for gas ⛽ mpg crap!!!! Why if you look in different countries they recommend the oil viscosity based on temperature..lol ya so live in the desert and go ahead use 0w-20 0 does nothing in high temperature..I use 15-50 -20-50 in everything any car I have ever had never had a engine problem from v,8 to 3 cyl this is a fake robot voice don't believe this crap if you live ware it's cold 10-30 typicaly good enough like I said there a oil temp chart you use oil viscosity by ware you live not from wat they put on the cap ...ya so motorcycles have small oil passages and they use 10-40 and 20-50 ...20w oil is only good until about 75 degrees only for performance ENGINES..lol don't believe any of this crap it's based on temperature not some all the same oil for all cars that's stupid there not smaller tolerances the engine couldn't turn over that's a joke
@mikegillysabbath73Strange, I saw a video that said Valvoline and Pennzoil oil was not good.
@breaker19-w2GBla bla bla
@douglasreed1323 months or 5000 kilometres is still the gold standard of oil changes.
@hijetoffroad4757I got 400 k on my 6.0 powerstroke and 390k on my dodge ram 94 gasser Shaeffers oil for the win 🤘🏻🙌🏼🤝💪🏻
@kp__truckinThis would be more believable if it were told with a human voice
@josephkool8411I don't care wtf approves it, I never go over 4000 miles or past 3 months.
Engine getting 16k over 3 months have degraded oil that's broken down and virtilually useless
Pennzoil Platinun Full Synthetic every 3k miles.
Oil is more than just a commodity — it influences geopolitics, drives economies, and shapes global power structures. Every change in production or price reverberates across industries and countries. To understand oil is to understand the underlying forces that shape the modern world.
@RachelLucas-u4pI like how you're talking about mobile one in the video but you're showing Castrol on the snip😂
@707crxI don’t use over priced oil like this semi sinthdeic
@WilliamKennedy-q6oAI bot BS
@vitoldgalkin4639True synthetic oil is class 4
The brands he is bringing up are class 3 and miss the mark. But they charge you synthetic prices.
Sounds like you’re an old man with a lot of opinions. No stats, just all your opinions.
@jameslufrano4001I have used Mobile 1 and Quaker State Full Synthetic, usually purchase at Walmart, in all my cars, SUVs, and minivans in the last 35 years. They work perfectly, and all of my vehicles easily hit 200k miles before I sold them or traded in for a new one.
@trucchuong1726This video is fake is made from the oil company itself
@masonheng1641