Come here to ask for technical help and advice
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Hi when I purchased my 411 last summer I asked the previous owner if I could run the car on unleaded fuel. He said it was ok due to this type of vehicle being designed for the American market, and they had introduced unleaded. Is this fact or fiction???
They reckon older ones are unlikely to have a problem due to the lead impregnated on the seats over many years. They run hotter than water-cooled heads anyway, so use hardened inserts.