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- Jun 2, 2003
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A VW 504 oil will result in less pollution and should extend life of emissions control components like cat and O2 sensors in the latest VW engines. VW 504 and VW 507 are absolutely compatible with older engines, but I don't know if those oils' benefits apply to your older engine.quote:
currently use Mobil 1 0W-40 in my 2001 1.8T. Would there be any benefit to changing to a 504/507 oil?
VW 504 (for gas engines) and VW 507 (for diesel engines) have the typical VW/Audi-mandated minimum HTHS of 3.5, but from what I have seen, you won't be finding any considerably higher HTHS either. Will a higher HTSH protect better? Maybe, but probably it is non-issue with normally driven cars. I'm shooting for oils with an HTHS of 3.7 and up, but that's me. VW 502 is true and tested and that's why it's still my top choice amongst the VW oil specs for gassers.
I don't think we know yet how well those new VW oils (VW 504/507) perform. If I were you, I'd stick with a VW 502 oil, or go hogwild and use M1 5W-40. ;-)