Just a side note on MM. My brother bought an old pickup the engine was sluged up and it did'nt have any oil pressure. He ran some kerosene through it but it did'nt help much. He said what the heck
dumped in 3/4 quart of MM the motor oil quickly turned black
and he started getting pressure and the lifters quit clattering. He ran it for an hour and changed ail.
Seems to have worked ok well just somthing to keed in mind for those problem days.