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Spare parts reviews ➔ All comparisons ➔ IDEMITSU ➔ FUCHS

Engine oil IDEMITSU or FUCHS

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IDEMITSU
FUCHS
FUCHS › Engine oil
BigScore4047
  • Engine noise:
Rating 4.0

I run Fuchs Titan Truck 15w40 in my Cummins 6BT, engine was rebuilt about 50,000ks ago, seems to go alright with this oil

Pros: seems to go alright
Mileage: 50000 km
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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
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IDEMITSU › Engine oil
random-guy1947
Rating 4.0

This is normal. Wait till it gets below 1k rpm. Modern engines do not need a lot of time to idle after cold start, the ECU handles it. Although, for a few kilometres, do not push very hard. The engine oil (0w-20 idemitsu) is thin, and needs time to lubricate well.

Pros: thin, needs to lubricate
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IDEMITSU › Engine oil
NefariousN1nja
Rating 5.0

Switch to Idemitsu ( Japanese oil ) - Manufacturers for genuine and even does factory fill for many, they are very premium oils with starting segment already beating the top shelf of alternative brands.

Pros: premium oils, beating alternative brands
Vehicle: Toyota
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FUCHS › Engine oil
kop200
  • Engine noise:
Rating 5.0

I can whole heartedly recommend Fuchs Silkolene oils, it actually quieted down my sv compared to Motul.

Pros: quieter than Motul
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FUCHS › Engine oil
RomanianUser999
Rating 4.0

Am bagat si eu Fuchs intr-un 3.0tdi si in romania 1L e 60 de lei cam asa dar pe [Ebay.de](http://Ebay.de) e 35 de lei litrul la fel si Aral, ciudat de ieftin. Motorul merge cam cu 10'C mai putin la ulri fata de castrol(se ducea si la 119'C pe autostrada)

Pros: Motorul merge mai putin
Cons: ulei scump in Romania
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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
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Which engine oil to choose — IDEMITSU or FUCHS?

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 IDEMITSU and FUCHS
  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 — FUCHS or IDEMITSU?

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

  1. IDEMITSU received a PR Score of 97 out of 100, and FUCHS scored 86 points.
  2. IDEMITSU ranked 14 in the overall ranking, and FUCHS ranked 22.
  3. The average rating is higher for IDEMITSU (4.8) than for FUCHS (4.2).
  4. Engine oil IDEMITSU have better feature ratings than FUCHS:
    • Engine noise - owners believe, that this property for IDEMITSU is better than FUCHS.
    • Exhaust smoke - drivers claim, that by this property IDEMITSU does not differ from FUCHS.
    • Warning light - reviews suggest, that this property for FUCHS is preferred to IDEMITSU.

Which engine oil are more popular — IDEMITSU or FUCHS?

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

By vote balance, engine oil IDEMITSU surpassed FUCHS:

  • For IDEMITSU, the ratio of positive (83) to negative (2) votes is 81 vote.
  • For FUCHS, the ratio of positive (57) to negative (9) votes is 48 votes.

By number of reviews, engine oil IDEMITSU surpassed FUCHS:

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

In March 2026, according to PartReview, engine oil IDEMITSU and FUCHS 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 IDEMITSU with: Mobil, Castrol, LIQUI MOLY, MOTUL, Shell, AMSOIL, VALVOLINE, PENNZOIL, RED LINE, OEM Toyota.

Also available: comparisons of engine oil FUCHS 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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