Castrol EDGE Euro is also VW 508 spec.
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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
I have a 450k km 1.9 tdi, and a 300k km 1.6 tdi, i always use 5w30 castrol, no issue.
Pros: no issue
Mileage: 450000 km
I would only suggest using \"premium\" oil brands, like Castrol or Elf, in correct specification.
Pros: premium oil brands
Castrol Power1 is really good though
Pros: really good
Vehicle:
Suzuki
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
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
Buy Castrol Edge engine oil for your Mazda 2.5, but do get the Mazda transmission oil.
Pros: Castrol Edge engine oil
Vehicle:
Mazda
I\u2019ve always preferred Castrol gold.
Pros: preferred Castrol gold
Vehicle:
Chevrolet Camaro
In my 323i with the 2.5L N52 engine, I use Castrol Edge 5w40 with the appropriate LL specification. Oil consumption is 3000 km per liter, with 190,000 km on the clock.
Pros: appropriate LL specification
Cons: oil consumption 3000km/liter
Vehicle:
BMW
Mileage: 190000 km
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What we know about Castrol engine oil
The brand is registered in Germany.
In March 2026, PartReview users have a positive opinion of Castrol engine oil.
PR Score — 90 out of 100, based on 538 reviews and 1655 votes. 472 positive reviews, 41 neutral review, 25 negative reviews. Average rating — 4.3 (out of 5). Vote balance: 1498 up, 157 down.
In the ranking of the best engine oil this part is at position 3, behind LIQUI MOLY and Mobil , but ahead of Shell and MOTUL.
Users also evaluated the qualities of Castrol engine oil:
- Warning light - oil pressure light flicker demands attention - rated positively. 4.4 points out of 5.
- Engine noise - louder ticking or knocking can mean low or old oil - rated positively. 4.2 points out of 5.
- Exhaust smoke - blue smoke indicates oil burning that needs checking - rated positively. 4 points out of 5.
Engine oil Castrol in car-specific ratings
See which car brands and models owners choose Castrol engine oil for. Below are car-specific ratings where this part is in the Top-3:
- Castrol ranked #1 in engine oil ratings for: Skoda Octavia, Audi A6, Volkswagen Corrado, Volkswagen Beetle, Audi TT RS .
- Castrol ranked #2 for: Mazda 3, Volkswagen Golf, Volkswagen Jetta, Ford Focus, Kia Soul .
- Castrol ranked #3 for: Toyota Prius, Subaru Legacy, Hyundai Veloster, Honda Accord, Volkswagen Passat .
Engine oil Castrol in comparisons
There are 31 comparison of Castrol engine oil with other manufacturers on PartReview.
In particular, see which engine oil are better: Castrol or OEM FORD, Castrol or Lucas, Castrol or Motorcraft, Castrol or OEM Audi, Castrol or Kendall .