Originally posted by 351coupe
I didn't say you couldn't,I said you shouldn't.You can switch,just be ready for oil leaks to start appering,replace what leaks and then you'll be fine.Regular oil clumps and holds leaks,if you switch to synthetic the fibers will work there way though to the gaskets.Some will say other wise but this is what I've learned over the years.
no i'm telling you I was told there is a fluid you can mix with the oil already in it and drive the motoro for about 50 miles and then drain and put the syntheic and you'll be find
just trying to find out what the fluid was