Engine oil Motorex or OEM Subaru

PartReview Score

Rank #27 in ranking

4.3

Engine noise

5.0

No data

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

Rank #21 in ranking

3.9

Engine noise

3.5

Exhaust smoke

3.3

Owners' choice:

Reviews

All

Motorex

OEM Subaru

OEM Subaru › Engine oil

Expensive_Community2 24 Jan 2026, 04:13

Exhaust smoke:

Rating 4.0

My mom's impreza will loose oil between oil changes with 0w-20 and will be fine with 5w-30. It burns the thinner oil.

Pros: fine with 5w-30

Cons: burns thinner oil

Vehicle: Subaru Impreza

OEM Subaru › Engine oil

CRYPTIC_SUNSET 24 Jan 2026, 01:03

Exhaust smoke:

Rating 4.0

My wife\u2019s 2012 Impreza is at 195k miles and I switched it to 0w-30 and then 5w-30 due to oil consumption. Was burning a quart every 1K miles on 0w-20, burns half that on 5w-30. I\u2019m actually considering going thicker.

Pros: burns half that

Cons: oil consumption

Vehicle: Subaru Impreza

Mileage: 195000 km

OEM Subaru › Engine oil

ajuscojohn 23 Jan 2026, 15:36

Rating 4.0

The dealership here itself was using 5w-30 as the default for oil changes even though 0w-20 is stamped on the filler cap. After checking myself that Subaru said that would be OK, I started using it too for my own changes just to avoid flipping back and forth -- though I have no idea if that would be a problem. In any case, the Forester seems happy, even if the mileage may have dipped slightly.

Pros: Forester seems happy

Cons: mileage may have dipped

Vehicle: Subaru Forester

OEM Subaru › Engine oil

Silver-Neckbeard 23 Jan 2026, 15:25

Engine noise:

Rating 4.0

Engine does become a bit quieter with 5w-30.

Pros: engine becomes quieter

OEM Subaru › Engine oil

FaintColt 1 Jan 2026, 19:58

Rating 5.0

Doesn\u2019t hurt so why not. I feel like that\u2019s the main answer and what pushes me to do it.

Pros: doesn't hurt

Vehicle: Subaru

OEM Subaru › Engine oil

HelpfulArachnid8177 1 Jan 2026, 14:18

Rating 5.0

I bought a new limited, last week. I did my first oil change yesterday and the amount of shit in it was crazy. Definitely do it.

Pros: crazy amount of shit

Vehicle: Subaru

Mileage: 482 km

Motorex › Engine oil

rat_trap69 21 Dec 2025, 17:39

Rating 5.0

At the end of the day, pretty much anything in spec will work fine.

That being said, I did a bunch of research for my V85 and determined that Motorex Cross-Power does the best in high demand applications. Air cooled engines can have a really wide temp range. That's what I use.

Pros: best in high demand

OEM Subaru › Engine oil

1234golf1234 6 May 2025, 14:25

Exhaust smoke:

Rating 3.0

Yeah? I’ve been using Subaru oem oil in my 260kmile 2015 forester. It only burns a little.

Pros: burns a little

Vehicle: Subaru Forester

Mileage: 260000 km

Motorex › Engine oil

No_Question_8083 21 Oct 2024, 20:42

Rating 3.0

It takes a “synthetic blend” of motorex 15W50 oil. And uhh yeah works good I guess, don’t have to change it too often, and as far as performance goes, it doesn’t really matter because I’m on restricted power anyways so yeah ????‍♂️

Pros: works good

Cons: restricted power

OEM Subaru › Engine oil

Tyesokay 23 Aug 2025, 02:57

Engine noise:

Rating 1.0

Do not listen to them. I have a 2015 forester non turbo I used 5w30 and had all kinds of problems id get codes for over advanced timing on one bank and under advanced on the other, I was getting power loss going uphill, weird chattering noise.

Cons: power loss, weird noise

Vehicle: Subaru Forester

1 2 3 4 5

Write your review

Help others - share your experience with this part.

Part:

Manufacturer:

Make:

Model:

Generation:

Review tone

Positive Negative Neutral

Reviews found: 0

Voted AGAINST engine oil RAVENOL on the rating page

The brake pads Motorcraft has only 4 reviews. Maybe add one more?

The brake fluid OEM Subaru has only 2 reviews. Maybe add one more?

The brake pads Detroit Axle has only 8 reviews. Maybe add one more?

The brake pads OEM Alfa Romeo got the first review!

The brake caliper OEM BMW got the first review!

The brake pads OEM Infiniti got the first review!

For wiper blades PIAA already 100 reviews.

For battery Energizer already 25 reviews.

In the rating best water pump already 12 brands participate!

In the rating best timing belt already 13 brands participate!

In the rating best head gasket already 3 brands participate!

In the auto rating oil filter for Volkswagen Passat already 5 brands participate!

In the auto rating brake pads for Mazda 5 already 10 brands participate!

In the auto rating tires for Subaru Outback already 50 brands participate!

The glow plug Autolite has only 10 votes! Recommend it?

The fender OEM Volkswagen has only 10 votes! Recommend it?

The brake discs Tesla has only 10 votes! Recommend it?

For cabin filter Fram already 25 reviews.

In the rating best flywheel only 4 brands. Do you know another one?

The brake pads OEM Subaru already has 250 votes!

The engine oil AMSOIL already has 1000 votes!

In the rating best CVT transmission only 4 brands. Do you know another one?

The engine radiator MISHIMOTO already has 300 votes!

Voted AGAINST engine oil RED LINE on the rating page

Voted AGAINST engine oil PENNZOIL on the rating page

Other comparisons

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

Engine oil Mobil or VALVOLINE

Engine oil Mobil or PENNZOIL

Show all

Which engine oil to choose — Motorex or OEM Subaru?

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:

Comparison of engine oil Motorex and OEM Subaru

PR Score.
Overall ranking.
Vote balance.
Average rating.
Number of reviews.
Feature ratings.
Car owners’ choice.

Which engine oil are better — OEM Subaru or Motorex?

In March 2026 on PartReview, engine oil OEM Subaru were overall better than Motorex.

Motorex received a PR Score of 84 out of 100, and OEM Subaru scored 81 point.
Motorex ranked 27 in the overall ranking, and OEM Subaru ranked 21.
The average rating is higher for Motorex (4.3) than for OEM Subaru (3.9).
Engine oil Motorex have better feature ratings than OEM Subaru:
- Engine noise - owners believe, that this property for Motorex is better than OEM Subaru.
- Exhaust smoke - drivers claim, that this property for OEM Subaru is outperforms Motorex.

Which engine oil are more popular — Motorex or OEM Subaru?

In March 2026 on PartReview, engine oil OEM Subaru were overall more popular than Motorex.

By vote balance, engine oil OEM Subaru surpassed Motorex:

For Motorex, the ratio of positive (44) to negative (8) votes is 36 votes.
For OEM Subaru, the ratio of positive (77) to negative (17) votes is 60 votes.

By number of reviews, engine oil OEM Subaru surpassed Motorex:

For engine oil Motorex there are 16 reviews: 12 positive, 4 neutral, 0 negative.
For engine oil OEM Subaru there are 30 reviews: 23 positive, 4 neutral, 3 negative.

Which engine oil do car owners prefer — Motorex or OEM Subaru?

In March 2026, according to PartReview, engine oil OEM Subaru led more car-specific ratings than Motorex:

OEM Subaru are chosen by owners of cars such as: Subaru Forester, Subaru Impreza, and others.

Engine oil Motorex have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.

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 Motorex with: Mobil, Castrol, LIQUI MOLY, MOTUL, Shell, AMSOIL, VALVOLINE, PENNZOIL, RED LINE, OEM Toyota.

Also available: comparisons of engine oil OEM Subaru with: Mobil, Castrol, LIQUI MOLY, MOTUL, Shell, AMSOIL, VALVOLINE, PENNZOIL, RED LINE, OEM Toyota.

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.