I totally agree with everyone out there dont add this stuff to
fuel 2 stroke 4 stroke or diesel.I do have one use for it in my
new 4 strokes I remove the valve covers and using a toothpick
lube the rocker arms and push rods ditto with the cam covers
for the camshaft .then fuel and run in .( slick 50 is thinned with marvel mistery oil ) I think a little extra lube on these parts a good thing I dont want it in the cylinder could mess up ring seating?? years ago used STP when putting full size engines
together after rebuilds no dry starts