You are correct. The US averages the two common scientific definitions to
get the posted octane. I believe this number is 4 or 5 points lower than the
UK standard.
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires
on 8/28/06 1:34 AM, Gosling, Richard at r.gosling@penspen.com wrote:
> The definition of octane levels is different in the UK to the US, but
> I'm not sure exactly what the difference is or which method gives the
> higher numbers. But our 98 or 99 octane may not be quite so much higher
> than your 91 or 93 premium as it looks like.
>
>
> Richard & Sammy
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