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Spare parts reviews ➔ All comparisons ➔ Motorex ➔ Pentosin

Engine oil Motorex or Pentosin

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Motorex
Pentosin
Motorex › Engine oil
rat_trap69
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
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Pentosin › Engine oil
RegularPomegranate80
Rating 5.0

I use Pentosin Pento HP II fully synthetic Euro Spec 5w-40 oil (made by Fuchs Oil in Germany). According to test data I have read it is a much better oil than the Mobil 1 oil. I believe that the 5w-40 oil provides greater protection against oil vaporization, as the OM642 can run at elevated temperatures leading to high oil temperatures, which tends to break down the oil sooner.

Pros: better than Mobil 1, greater protection, resists vaporization
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Motorex › Engine oil
rat_trap69
Rating 4.0

It works great, maybe a bit expensive. I've run used oil analysis and change it 3-4k miles based on aluminum wear. I don't see a reason to use something else.

Pros: works great
Cons: a bit expensive
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Motorex › Engine oil
Dependent-Ratio-170
Rating 4.0

I use Motorex semi-synthetic 4t in all of my KTM's over the years in a 15w50 weight. It has never been an issue. I have used Motul 5100 and 7100 in other bikes before, and I prefer the 7100 over the 5100. It feels like the bikes perform better when the temps rise and I'm really riding them hard.

Pros: bikes perform better
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Pentosin › Engine oil
Sad-Fall-1365
  • Engine noise:
Rating 5.0

After talking to a European mechanic. He said u need Germany oil for a German car. American oil is trash bc of the EPA regulations. He recommended Pentosin. The tick tock went away and I've been using it every oil change

Pros: tick tock went away
Vehicle: BMW
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Motorex › Engine oil
CrzyDave
Rating 5.0

Just came across this. Mine is a 2024 w 31 hours. I always used Motorex but I’m trying T6 this time. I use it in all my other off road bikes. In the 2t it’s just the clutch and trans. Also I’m changing it every 10 hrs

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Motorex › Engine oil
clear_sky_28c
Rating 5.0

Ive used these. Motorex was the best. Castrol was pretty good, and Shell in case the others were not available. Now at 34k odo without problems.

Pros: Motorex was the best
Cons: Shell not always available
Mileage: 34000 km
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Motorex › Engine oil
No_Question_8083
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
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Motorex › Engine oil
No_Question_8083
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
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Which engine oil to choose — Motorex or Pentosin?

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 Pentosin
  1. PR Score.
  2. Overall ranking.
  3. Vote balance.
  4. Average rating.
  5. Number of reviews.
  6. Feature ratings.
  7. Car owners’ choice.

Which engine oil are better — Pentosin or Motorex?

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

  1. Motorex received a PR Score of 84 out of 100, and Pentosin scored 100 points.
  2. Motorex ranked 27 in the overall ranking, and Pentosin ranked 19.
  3. The average rating based on reviews is the same for Motorex (4.3) and Pentosin (4.7).
  4. Engine oil Pentosin have better feature ratings than Motorex:
    • Engine noise - owners believe, that this property for Motorex is better than Pentosin.
    • Warning light - drivers claim, that this property for Pentosin is outperforms Motorex.
    • Exhaust smoke - reviews suggest, that this property for Pentosin is preferred to Motorex.

Which engine oil are more popular — Motorex or Pentosin?

In March 2026 on PartReview, engine oil Pentosin were overall more popular than Pentosin.

By vote balance, engine oil Pentosin surpassed Motorex:

  • For Motorex, the ratio of positive (44) to negative (8) votes is 36 votes.
  • For Pentosin, the ratio of positive (48) to negative (0) votes is 48 votes.

By number of reviews, the manufacturers are equal:

Which engine oil do car owners prefer — Motorex or Pentosin?

In March 2026, according to PartReview, engine oil Motorex and Pentosin have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.

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 Pentosin 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.

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