Got it
We use cookies to collect statistics and improve your experience. Learn more.
Spare parts reviews ➔ All comparisons ➔ Castrol ➔ IDEMITSU

Engine oil Castrol or IDEMITSU

Reviews
All
Castrol
IDEMITSU
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
Comment
Is this review helpful?
source
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
Comment
Is this review helpful?
source
IDEMITSU › Engine oil
Possible-Aerie-8828
  • Engine noise:
Rating 5.0

I buy 5 OE Toyota filters at a time from Amazon ( approximately $6 ea ) Purchase Ow-20 Idemitsu oil from NAPA ( ships free to my home ) in the cost saving 6gal box ( 24 qts ) for about $125 with their online coupon. Use this in both my Avalon and my Tundra- both run like a dream.

Pros: cars run like a dream, cost-saving
Vehicle: Toyota Avalon
Comment
Is this review helpful?
source
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
Comment
Is this review helpful?
source
IDEMITSU › Engine oil
ExtraGlutenPlzz
Rating 3.0

So if you review the virgin oil analysis database, it includes idemitsu 0w-20 and 5w-30 and for both, the TBN is rather weak in comparison to other more readily available blends, also, the viscosity at 9.5 cSt for a 30w, some 20w come close to that. Does any of that matter? Not a whole lot, but it shows that there's nothing special about the oil. Generally speaking, higher TBN is better.

Pros: nothing special about oil
Cons: TBN is rather weak
Comment
Is this review helpful?
source
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
Comment
Is this review helpful?
source
1 2 3 4 5 6 7 8 9 ... 57

Write your review

Help others - share your experience with this part.

Other comparisons
VS

Engine oil Mobil or Castrol

VS

Engine oil Mobil or LIQUI MOLY

VS

Engine oil Mobil or MOTUL

VS

Engine oil Mobil or Shell

VS

Engine oil LIQUI MOLY or Castrol

VS

Engine oil Mobil or AMSOIL

VS

Engine oil Mobil or VALVOLINE

VS

Engine oil Mobil or PENNZOIL

Show all

Which engine oil to choose — Castrol or IDEMITSU?

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 IDEMITSU
  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 — IDEMITSU or Castrol?

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

  1. Castrol received a PR Score of 90 out of 100, and IDEMITSU scored 97 points.
  2. Castrol ranked 3 in the overall ranking, and IDEMITSU ranked 14.
  3. The average rating is higher for IDEMITSU (4.8) than for Castrol (4.3).
  4. Engine oil IDEMITSU have better feature ratings than Castrol:
    • Engine noise - owners believe, that this property for IDEMITSU is better than Castrol.
    • Warning light - drivers claim, that this property for Castrol is outperforms IDEMITSU.
    • Exhaust smoke - reviews suggest, that this property for IDEMITSU is preferred to Castrol.

Which engine oil are more popular — Castrol or IDEMITSU?

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

By vote balance, engine oil Castrol surpassed IDEMITSU:

  • For Castrol, the ratio of positive (1498) to negative (157) votes is 1341 vote.
  • For IDEMITSU, the ratio of positive (83) to negative (2) votes is 81 vote.

By number of reviews, engine oil Castrol surpassed IDEMITSU:

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

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

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 IDEMITSU 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 IDEMITSU 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.

Loading...
›