Re: Marvelous Mystery Oil?
I am a longtime user of MMO; I add it to gas fill ups - around 4 oz to 10 gallons gas.
Have done so ever since it unstuck one or more valves in my '41 Cadillac, which had been little used for years. It was a car in 1981 with 26,500 on it. I used the MMO in its gas and in crankcase.
To answer the question above, I always add 1 Qt MMO to the '41 Cad oil change, to replace 1 Qt of motor oil. Also use 1 Qt in oil change for '69 Cad. Ditto in other cars I have had.
Regards,
Dyson
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