Did they have to track down leaded gas? Did they just use unleaded? Did they suffer engine knock?

  • invertedspear
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    1 month ago

    From 97-2000 I drove a ‘77 GMC truck that was designed for leaded gas which was not available any more. I just used unleaded. No additives or anything. Maybe the fact it was a V8 meant it could stand being a little out of tune, but I never saw any adverse affects.