Engine oil OEM Toyota or AMSOIL
I have a 2015 Tacoma 4-cylinder stick shift 52,000 mi. I bought it new. The only maintenance I had to do was oil changes and I go underneath with a grease gun and grease all the fittings along the axle.
Fellow mu-X owner here! If you're thinking about upgrading from the standard Isuzu Genuine Motor Oil 10W-30, check out the ZIC X7 Diesel 10W-30 Fully synthetic. I used Amsoil Turbo Truck 5w40 too (10k km interval) but it's expensive for my Garage queen mux haha. Mobil Delvac1 5W-40 is good as well.
I have Signature in my 25. Smoothed out the engine noises quite a bit.
Engine noise is a little, well noisy, mine is less rumbly/vibrationy after I changed my oil and used Amsoil Hybrid oil. I can’t generally feel anything when the engine kicks on now, before I could definitely feel it every time it kicked on.
Just got the oil lab report back from the sample taken during the oil change I did at 15K miles. The previous oil change at 10K was performed by the dealership. So that means that whatever the Toyota dealership put in there at 10K, was not OEM Toyota oil.
I switched oil to AMSOIL signature series synthetic, from everything I read, it out performs other oils, used to use Mobil 1
I bought a 2008 toyota yaris for $5.5k on fb marketplace. Had a prepurchase inspection.\n\nI love that car for the exact reasons you mentioned. It\u2019s been with me everywhere ive gone, is super cheap on gas, and just requires oil changes every 8000 km.
My 2016 GT350R has almost 25K miles and has never needed oil between changes. I use Amsoil every 5000 miles, sooner depending on track abuse.
My biggest regret, not swapping out the shitty 0w-20 factory filled oil for some 5w-30 Amsoil, Motul, or Pennzoil Ultra platinum the moment I took it home. Don\u2019t wait till 1k miles.
Get a catch can but that mobile 1 oil you are using is for shit . Amsoil is best for mustangs and the best for that matter period it\u2019s cost but you can run it 25k
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Which engine oil to choose — OEM Toyota or AMSOIL?
If choosing engine oil across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare engine oil across these categories:
- PR Score.
- Overall ranking.
- Vote balance.
- Average rating.
- Number of reviews.
- Feature ratings.
- Car owners’ choice.
Which engine oil are better — AMSOIL or OEM Toyota?
In March 2026 on PartReview, engine oil AMSOIL were overall better than OEM Toyota.
- OEM Toyota received a PR Score of 85 out of 100, and AMSOIL scored 93 points.
- OEM Toyota ranked 11 in the overall ranking, and AMSOIL ranked 6.
- The average rating is higher for AMSOIL (4.5) than for OEM Toyota (4.2).
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Engine oil AMSOIL have better feature ratings than OEM Toyota:
- Exhaust smoke - owners believe, that this property for AMSOIL is better than OEM Toyota.
- Warning light - drivers claim, that this property for AMSOIL is outperforms OEM Toyota.
- Engine noise - reviews suggest, that this property for AMSOIL is preferred to OEM Toyota.
Which engine oil are more popular — OEM Toyota or AMSOIL?
In March 2026 on PartReview, engine oil AMSOIL were overall more popular than OEM Toyota.
By vote balance, engine oil AMSOIL surpassed OEM Toyota:
- For OEM Toyota, the ratio of positive (181) to negative (31) votes is 150 votes.
- For AMSOIL, the ratio of positive (930) to negative (69) votes is 861 vote.
By number of reviews, engine oil AMSOIL surpassed OEM Toyota:
- For engine oil OEM Toyota there are 69 reviews: 57 positive, 5 neutral, 7 negative.
- For engine oil AMSOIL there are 328 reviews: 300 positive, 15 neutral, 13 negative.
Which engine oil do car owners prefer — OEM Toyota or AMSOIL?
In March 2026, according to PartReview, these manufacturers led the same number of car-specific ratings:
OEM Toyota are chosen by owners of cars such as: Toyota Camry, Toyota Corolla, and others.
AMSOIL are chosen by owners of cars such as: Honda S2000, Toyota 4runner, and others.
Other comparisons of engine oil
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of engine oil OEM Toyota with: Mobil, Castrol, LIQUI MOLY, MOTUL, Shell, VALVOLINE, PENNZOIL, RED LINE, Mannol, RAVENOL.
Also available: comparisons of engine oil AMSOIL with: Mobil, Castrol, LIQUI MOLY, MOTUL, Shell, VALVOLINE, PENNZOIL, RED LINE, Mannol, RAVENOL.
You can also see who is better among other engine oil manufacturers: Mobil or Castrol, Mobil or LIQUI MOLY, Mobil or MOTUL, Mobil or Shell, LIQUI MOLY or Castrol.