I switched to Castrol Edge 5w40, and what a difference! It loves it. We didn’t lose any fuel mileage, just as Pepe. but much much smoother.
Pros: much smoother, no fuel mileage loss
Reviews of Castrol engine oil
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Car idles smoother with Castrol it seems.
Pros: idles smoother
Vehicle:
Mazda
I run 10w-40 castrol gtx been running it for the past 5 years I drive a 2011 wrx
Pros: used for 5 years
Vehicle:
Subaru
ran Castrol 20w50 GTX in my 2.4 Naps Z D21 since new the mechanic who put on new head gasket w/215.000 due to a bad radiator said engine looked brand new inside
Pros: engine looked brand new
Vehicle:
Nissan
Mileage: 215000 km
Used 5w40 castrol for most its life, but vw504 standard is good too. Using it now and the old man says it runs good.
Pros: runs good, long-lasting
Vehicle:
Volkswagen Jetta
Mileage: 250000 km
One time I had the oil bug bite (keera) and I decided to get the best oil. Castrol (I don't remember the number) but it was 340 AED for a gallon. I poured it into the engine and it felt good. That weekend took it for a desert drive and during one of the breaks, the entire oil just leaked out of the main seal. The oil was so good that the engine didn't have the tolerances to hold it back.
Pros: felt good
Cons: oil leaked out
Vehicle:
Jeep
My Mazda3 which I service myself now, Castrol edge 5w-30 and feels happier. Same engine too.
Pros: feels happier
Vehicle:
Mazda
I always used blue "german" coolant in my e90 bmw oddly it also recommended Castrol oil. Specifically called for it in oil cap
Vehicle:
BMW
i drive 85% freeway so i change the oil and oil filter every 7500 miles using Castrol Edge 0W-20 synthetic oil since 2017 no vehicle issue.
Pros: no vehicle issue
Mileage: 7500 km
I put Castrol euro 5w-50 made for BMW and it's 6-7 liters and change it every 5000km I have a 2003 330ci and it still runs like new
Pros: runs like new
Vehicle:
BMW
Mileage: 5000 km
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