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Spare parts reviews ➔ All comparisons ➔ Castrol ➔ Pentosin

Engine oil Castrol or Pentosin

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Castrol
Pentosin
Castrol › Engine oil
PoccaPutanna
Rating 5.0

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.

Pros: cheap and easy to find
Cons: insufficient pressure, damage over time
Vehicle: Fiat
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Castrol › Engine oil
_Chill_Winston_
Rating 4.0

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.

Pros: quality oil, done correctly
Cons: smell gas during changes
Vehicle: Honda
Mileage: 60000 km
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Castrol › Engine oil
Ube2fresh
  • Engine noise:
Rating 5.0

I have a 2010 civic si, I use shell rotella T-6 5w-40 due to burning issues and one quart of Castrol 5w-30 high mileage full synthetic (I’m picky lol- but my car runs smooth and has consistent oil levels on the dipstick through the weeks after oil change)

Pros: car runs smooth
Cons: burning issues
Vehicle: Honda Civic
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Castrol › Engine oil
Oldandannoying1955
Rating 2.0

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.

Cons: glazed bores, gummed lifters
Vehicle: Subaru
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Which engine oil to choose — Castrol 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 Castrol 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 Castrol?

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

  1. Castrol received a PR Score of 90 out of 100, and Pentosin scored 100 points.
  2. Castrol ranked 3 in the overall ranking, and Pentosin ranked 19.
  3. The average rating is higher for Pentosin (4.7) than for Castrol (4.3).
  4. Engine oil Pentosin have better feature ratings than Castrol:
    • Engine noise - owners believe, that this property for Pentosin is better than Castrol.
    • Warning light - drivers claim, that this property for Pentosin is outperforms Castrol.
    • Exhaust smoke - reviews suggest, that by this property Castrol does not differ from Pentosin.

Which engine oil are more popular — Castrol or Pentosin?

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

By vote balance, engine oil Castrol surpassed Pentosin:

  • For Castrol, the ratio of positive (1498) to negative (157) votes is 1341 vote.
  • For Pentosin, the ratio of positive (48) to negative (0) votes is 48 votes.

By number of reviews, engine oil Castrol surpassed Pentosin:

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

In March 2026, according to PartReview, engine oil Castrol led more car-specific ratings than Pentosin:

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.

Engine oil Pentosin 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 Castrol with: Mobil, LIQUI MOLY, MOTUL, Shell, AMSOIL, VALVOLINE, PENNZOIL, RED LINE, OEM Toyota, Mannol.

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

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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