Owner reviews for engine oil

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Engine noise

RAVENOL

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PENNZOIL

Exhaust smoke

RED LINE

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Mobil: Engine oil

Castrol: Engine oil

LIQUI MOLY: Engine oil

MOTUL: Engine oil

Engine oil Mobil or Castrol

Engine oil Mobil or LIQUI MOLY

Engine oil Mobil or MOTUL

Engine oil Mobil or Shell

Engine oil LIQUI MOLY or Castrol

Engine oil Mobil or AMSOIL

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VALVOLINE › Engine oil

mw136913 29 Oct 2025, 18:53

Rating 4.0

Engine noise:

Running it in my Subaru outback 2.5 with 50k miles. I noticed a difference in the first 1k miles.

Better compression and better mileage (2 to 3 mpg!) a lot quieter!

Also running it in Subaru outback 2.4 turbo with 30k miles. A bit better. Not huge. But noticing.

Also a lot quieter!

Pros: better compression, better mileage

Cons: not huge difference

Vehicle: Subaru Outback

Mileage: 50000 km

MOTUL › Engine oil

add1c7ed21 29 Oct 2025, 13:24

Rating 5.0

I'm using motul 5w40 8100 x clean and it's great on my m54b22. I'm loosing little to no oil between changes

Pros: great, little to no oil loss

Vehicle: BMW

OEM Toyota › Engine oil

PatrickGSR94 28 Oct 2025, 23:01

Rating 4.0

I’ll do the 15k oil change soon with Toyota OEM 0w-16, which is made by M1 but has a much higher moly content than the regular retail M1 oil.

Pros: higher moly content

Vehicle: Toyota

Mileage: 15000 km

LIQUI MOLY › Engine oil

guywiththehair 28 Oct 2025, 20:09

Rating 4.0

Exhaust smoke:

I had oil burning issues even with 10W-40 in my high mileage 325.\nMy mechanic put in LiquiMoly 10W-60, which seems to be much better.

Pros: seems to be much better

Vehicle: BMW

VALVOLINE › Engine oil

401Nailhead 28 Oct 2025, 16:11

Rating 5.0

Exhaust smoke:

Nah. I have a 2006 Merc 4.0. 183K. I run high mileage Valvoline 10W-30 oil. My Merc does not burn oil. Runs great.

Pros: runs great, no oil burn

Mileage: 183000 km

VALVOLINE › Engine oil

954kevin 28 Oct 2025, 04:53

Rating 4.5

Exhaust smoke:

Valvoline Restore and Protect. This newly designed oil can, and does, remove up to 100% of engine deposits. Including those found on and around the piston rings. A major contributing factor to oil blow-by, or general usage between oil changes. It take a couple 4k mile oil changes to work. Everything I have researched shows that it does work and many, most even, report a significant reduction in burning oil between oil changes, but do your own research! :) I wasn't having oil burning issues in my 8th gen, but still ran it through a couple times because it certainly won't hurt anything!

Pros: removes engine deposits, reduces oil burning

Vehicle: Honda Civic

Shell › Engine oil

LandsOnAnything 25 Oct 2025, 08:47

Rating 5.0

Engine noise:

Shell. Literally makes my vehicles dead silent after every oil change.

10W40 on my 1995 Camry

20W50 on my 2015 Toyota Hiace

Pros: vehicles dead silent

Vehicle: Toyota Camry

LIQUI MOLY › Engine oil

SeaOriginal2008 25 Oct 2025, 05:08

Rating 4.0

5w-30. I use LiquiMoly Molygen and my experience is good.

Pros: good experience

Castrol › Engine oil

PadyEos 5 Aug 2025, 06:04

Rating 3.0

Engine noise:

Al producătorului, Mobil1 sau Ravenol în general. E ok și Castrol doar că în experiența mea se înnegrește mai repede și trebuie schimbat mai repede pentru o funcționare lină a motorului.

Pros: ok si Castrol

Cons: se innegreste mai repede

OEM Toyota › Engine oil

Unfair_Put_5320 22 May 2025, 23:46

Rating 2.0

Exhaust smoke:

The only thing I noticed that my 03 Camry burns more oil when I was obsessed with 95, im usin 91 now though its still burning oil but not as much as 95.

Cons: burns more oil

Vehicle: Toyota Camry

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