NO ENGINE REQUIRES LEADED GAS AND IN 1923 NO GAS CONCONTAINED LEAD. LlEAD WAS USED TO RAISE THE OCTANE AND THE LEAD MADE THE GAS BURN SLOWER.
USE THE LOWEST OCTANE YOU CAN FIND AND IF IT DOES NOT CONTAIN ETHANOL IT IS A PLUS. YOUR ENGINE WAS DESIGNED TO RUN ON 50 OCTANE GAS.
Gas additives are not necessary but some 2 cylcle oil can be added to the gas to help lhe rings,
MARVEL MYSTERY OIL HAS NO OR VERY LITTLE LUBRICATING ABILITIES SO DO NOT ADD ANY TO THE OIL. THINK OF IT AS BEING A NICE SMELLING KEROSENE.
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