Owner reviews for engine oil

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Engine noise

RAVENOL

4.8

Warning light

PENNZOIL

5.0

Exhaust smoke

RED LINE

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LIQUI MOLY: 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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MOTUL › Engine oil

seeyalater25 24 Oct 2025, 03:25

Rating 5.0

Looks fine to me, oil is relatively cheap, forget all the mileage crap and change it sooner if you are uncomfortable with the way it looks. I change my oil every 2000 miles, or whenever I go on or do heavy riding. I also switched over to Motul 7100 simply because it’s red and I can see exactly when it starts to discolor. A motorcycle mechanic told me the number one reason for engine failure is dirty oil so I started changing it frequently.

Pros: oil is relatively cheap

Cons: oil discolors quickly

Mileage: 2000 km

Part number: 7100

VALVOLINE › Engine oil

gumby_twain 23 Oct 2025, 16:38

Rating 5.0

Engine noise:

Assuming you don’t have an obvious oil leak, which at that rate it would be, the best you can do is try to switch to Valvoline Restore and Protect oil. It’s getting rave reviews for its ability to clean piston rings on bobistheoilguy.

Pros: cleans piston rings, rave reviews

Vehicle: Volvo V60

VALVOLINE › Engine oil

TisABummer 23 Oct 2025, 07:14

Rating 5.0

Just use valvoline restore and protect and you’re safe to go! My elantra is a 2021 with 43k miles and I haven’t had even one issue with the engine so far. I bought it with 41k miles and there’s nothing like the peace of mind I sense knowing I can rely on it to take me where I need to go. Idk if it’s the oil or what, but I’m impressed.

Pros: engine reliability, peace of mind

Vehicle: Hyundai Elantra

Mileage: 43000 km

VALVOLINE › Engine oil

Korax234 23 Oct 2025, 01:50

Rating 5.0

Valvaline Restore & protect is the best oil to use when getting up there in miles. It slowly cleans the engine. It’s all i run in all my vehicles now. My Clarity has 133k miles with no issues.

Pros: cleans engine, no issues

Vehicle: Honda

Mileage: 133000 km

VALVOLINE › Engine oil

justkdang 22 Oct 2025, 22:48

Rating 5.0

Warning light:
Engine noise:
Exhaust smoke:

I use 5w-30 Valvoline Restore & Protect, I’m from the SoCal low desert region. Never had an issue, changed every 5,000 miles (nearly once a months cause I commute so much for work).

Pros: no issues, reliable performance

Vehicle: Mazda 3

Mileage: 202777 km

TOTACHI › Engine oil

Ok_Hope_9431 21 Oct 2025, 23:04

Rating 5.0

Engine noise:

Try to get totachi, the difference after oil change is day n night

Pros: difference day n night

OEM Mazda › Engine oil

Contalyst 21 Oct 2025, 17:34

Rating 5.0

I personally am changing my own oil with full synthetic on my 23 2.5T every 6000 km or so. No need other than peace of mind for me. Doing it myself only takes 30 minutes and $35 in oil, filter and crush washer.

Pros: peace of mind

Vehicle: Mazda 3

Mileage: 6000 km

OEM Mazda › Engine oil

AutoModerator 21 Oct 2025, 16:31

Rating 5.0

For [Naturally-Aspirated Skyactiv engines](https://en.wikipedia.org/wiki/SkyActiv), it is highly recommended that you use Mazda's own(Idemitsu) high molly GF-5 0w-20. [Arguably it is one of the best oil for skyactiv engines](http://www.cleanmpg.com/community/index.php?threads/45295/#post-357910).

Pros: best oil for skyactiv

Vehicle: Mazda 3

Part number: GF-5 0W-20

Mobil › Engine oil

Interesting_Bill_456 25 Jul 2025, 16:05

Rating 3.0

Engine noise:

Im using Mobil 1 ESP 0w-30 which is a thicker Euro oil here in Upper Midwest USA. I don't notice any difference is sound, acceleration, not efficiency vs 0w-16 and 9w-20 in a 2024 Rav4 Prime XSE.

Pros: no difference in sound

Cons: no difference in efficiency

Vehicle: Toyota

Mannol › Engine oil

tjcooper17 14 May 2025, 10:43

Rating 1.0

Engine noise:

Pouring it in it seemed thinner than the rating would suggest. When I turned on my engine (NC MX-5) I noticed a new ticking noise that doesn't go away.

Turns out it's the hydraulic lifters.

Cons: new ticking noise

Vehicle: Mazda