Quote:
Originally Posted by JMFL36
Should I also add some MMO to my oil?
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Modern oil is so good that I do not add MMO to the oil. Without leaded gas, where MMO is needed most is in the fuel to give a little lubrication to the valve shafts. I do include one quart of Valvoline VR-1 in each oil change to provide some zinc to those flat tappets.