Hi Toby - Still like the shirts, although we have not yet had occasion to wear
them. Scraped a quarter inch of ice of my windshield before driving home last
night. I seem to remember my owner's manual asking for 100 octane, but it's
been awhile since I read it. Since rebuilding the engine the last time, I have
been using unleaded premium, with no noticable ill effects. I did use hardened
valves that are supposed to tolerate unleaded, but I still would rather have the
added safety factor. The kitchen table gets so cluttered with an engine sitting
on it. Kate
Toby Atwater wrote:
> quick question....
>
> I just realized, I have no idea what these cars run on.... I bought 3
> gallons of 97 "supreme" octane petrol, but I have no clue if that is
> necessary. What spridegts were designed to run leaded fuel? any? all? as I
> understand it... the A series engine runs about 8.5 :1 compression, what
> octane should I run to prevent detonation?
>
> I could always just experiment and try 87 octane and see if it
> pings/pinks/detonates/knocks ...
>
> As always, thanks for your help...
>
> Toby
> Toby Atwater, Santa Barbara, CA, tob@taltec.net
> 1969 Austin Healey Sprite, mk 4 ?? octane
> 1971 FJ-40 Toyota Land Cruiser designed to run off sugar cane alcohol. (back
> in the day)
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