Oil specification is a bit of a minefield to decode. Certainly, using an oil not specified by the manufacturer could potentially invalidate the warranty - an especially important consideration if you are tracking!I have been looking into this as well. It seems the later cars with GPF have to run on Honda 0W20 Type 2.0 C2/C3 spec oil and cannot run on anything else. Track specific oils like the Millers are no good which is a shame.
Sent from my iPhone using Tapatalk
I believe that if your car is on a service plan that most workshops will use Castrol 0w20 which is to ILSAC gf5 specification(because it is a bit cheaper). Is that the same as ACEA C2? Difficult to tell. There doesn’t appear to be any direct comparison charts between the different standards. Surely must be ok if Honda dealers are using it ?
A quote from penriteoil.com:
“ILSAC, API and ACEA specifications require a large range of engine and laboratory tests on the oil. Parameters such as high and low temperature wear, oxidation, soot control, oil thickening, deposit control, volatility, stay in grade performance, fuel economy, chemical composition and many others are tested against limits and rated.
In the case of the API, the oil specifications become more severe as the letters climb the alphabet, eg SL is more severe than SJ. This is not necessarily the case with ACEA as their specifications are more application specific.”
I have seen elsewhere that the ACEA tests are more rigorous and stringent than the other two, so it would seem that ACEA C2 is the prudent choice.
Interesting that Opie oils and even Cox Motor Parts do recommend some oils that only have specifications quoted that are from the other standards (API or ILSAC)
Last edited: