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.
Castrol EDGE Euro is also VW 508 spec.
The mechanic is absolutely wrong. You must use a 5W-40 C3 oil with the Fiat 9.55535-S2 specification, I use the Castrol Magnatec 5W-40 C3, which is cheap and easy to find, but any other brand with the correct specification is fine. A 0W-20 oil has insufficient pressure and film strength, and will lead to damage over time.
I have a 450k km 1.9 tdi, and a 300k km 1.6 tdi, i always use 5w30 castrol, no issue.
I would only suggest using \"premium\" oil brands, like Castrol or Elf, in correct specification.
Castrol Power1 is really good though
I change the oil myself...to ensure it's done correctly and with quality oil (I use Castrol Edge). And I go by the oil minder. I do smell gas during oil changes but it's not strong and never in the cabin between oil changes as some have reported.
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.
Just hard to read with fresh oil. 0-16 was impossible to read on the dipstick when new in my 2022 Camry. Even my 2011 Corolla is hard to read.
It\u2019ll be okay. Subaru engines are robust and that mix rate won\u2019t increase the viscosity enough to affect the oil flow rate out to the cams.\nPardon my skepticism regarding Castrol oils though. Haven\u2019t been a fan of them since the GTX days. The additives they\u2019d chuck in their generically sourced base oils glazed bores and gummed lifters.\nCost many a machine shop like ours a fortune in comeback work.
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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:
In March 2026 on PartReview, engine oil Castrol were overall better than OEM Toyota.
In March 2026 on PartReview, engine oil Castrol were overall more popular than OEM Toyota.
By vote balance, engine oil Castrol surpassed OEM Toyota:
By number of reviews, engine oil Castrol surpassed OEM Toyota:
In March 2026, according to PartReview, engine oil Castrol led more car-specific ratings than OEM Toyota:
Castrol are chosen by owners of cars such as: Skoda Octavia, Audi A6, Audi A7, Audi TT RS, Ford Explorer, Volkswagen Beetle, Volkswagen Corrado, and others.
OEM Toyota are chosen by owners of cars such as: Toyota Camry, Toyota Corolla, and others.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of engine oil Castrol with: Mobil, LIQUI MOLY, MOTUL, Shell, AMSOIL, VALVOLINE, PENNZOIL, RED LINE, Mannol, RAVENOL.
Also available: comparisons of engine oil OEM Toyota with: Mobil, LIQUI MOLY, MOTUL, Shell, AMSOIL, 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.
