Originally Posted By: BitterShard
I think that the difference is in the cost of the oil itself.
Motor oil in the US is CHEAP, just like our gasoline. It is not always possible to get direct comparisons, but I think that our motor oil is about half the price of Europe's.
I have no great incentive for extended OCI when I can go to a local Qwik Lube and get a oil and filter change including labor for $39.95 (26 pounds, €36). Yes, I know it is 'just' Pennzoil conventional, but with short OCI and if it satisfies my warranty who cares?
Extended OCI lead to concerns about fuel dilution and oil shearing (ACEA A3/A5 descriptions start with 'Shear stable...)
And concerns about shearing lead to a more shear stable base oil or starting with a high enough weight that you have sufficient margin (xW-40).
even A3/B3/B4 is share stable
I will start like this....
You can use 0w20 water stuf in Yenkee engine...it is just OHV lawn mower engine with addition of EFi...
For every day "tuned" european engines with GDi...turbos....Vtecs you must use somthing thicker
