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Originally Posted by steelwind101 It seems like in the USA you have fuels with much lower octane ratings then we do in UK. You can easily find fuel with an octane rating of 99 on supermarket forecourts.
With in certain parameters you will find engines adjust for inconsistancy etc. I have also noted however, in the USA many EU cars and even Japanese engines have less out put then they do on the same UK or European model. |
I think you'll find both issues are resolved when you take into account measurement methods
As rjstaff pointed out, we use a different method of rating octane, making ours appear lower.
In the UK, its not uncommon to state engine output in bhp, which often shows up as a larger number than SAE horsepower, which is what we use in the US.