How high is Hi-Octane

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boomouse - 13 Jun 2007 15:39 GMT

I have a 1997 Limited with the OHV V6 here in Manila, Philippines. The
local Ford dealer advised me to just ran the thing on ordinary
unleaded which is 93 RON. I sometimes fill up with 95 RON or even the
pricier 97 RON and do notice that it does provide a significantly
stronger 'kick'.

Then I read here that you guys across the Pacific are using 87 octane
fuel as the recommended grade. Am I missing something here? I can't
buy anything lower than 93 octane. Even the local E10 is at 95.

I guess its a bit pointless to ask after running thing for 10 years
but I do want to avoid that inevitable overhaul for as long as
possible.

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Bob - 13 Jun 2007 22:59 GMT

> I have a 1997 Limited with the OHV V6 here in Manila, Philippines. The
> local Ford dealer advised me to just ran the thing on ordinary
[quoted text clipped - 9 lines]
> but I do want to avoid that inevitable overhaul for as long as
> possible.

There are several different methods used in the world for octane
ratings. In the USA and Canada a different scale is used than most of
the world. This is 4 to 5 points lower than the scale used in the
Philippines. Hence USA and Canada octane ratings are 4-5 points lower
than the scale used in the Philippines. So 87 octane in the USA would be
called 93-94 octane in the Philippines for the same gasoline.

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