Jeff, consensus here a couple months ago was to run it on the proper octane
unleaded. Unless you are racing the little sucker, you won't have any
problems.
Remember that in the USA the octane posted on the pump is an average of the
two rating methods. So if 95 octane is specified for your engine in period
literature, today's 92 or 93 octane will be fine.
Next time you do a valve job you can put hardened seats in if you want.
Enjoy the car, don't worry, be happy!
Atwell Haines
'79 Spitfire
Succasunna, NJ USA
At 09:47 AM 12/06/99 -0800, Jeff McNeal wrote:
>
>Back when I had my first Spitfire -- a '67 -- I had no trouble finding
>leaded gas to put in the tank. I just purchased a '69 and I'm wondering how
>to keep this puppy alive on an unleaded diet. My first inclination is to
>simply fill it with premium unleaded, retard the timing slightly to avoid
>pings if necessary, and take my chances. I figure if it's still running
>this many years of unleaded fuel consumption later, then I shouldn't be too
>concerned. Would adding octane boost to the fuel mix be advisable?
>
>
|