[SeaSlugs]

I know alot of people run them. I cant see any negative effects from them.

That 500 mile oil change was back when people didnt drive much more than the few miles to town on dusty dirt roads with oil that we wouldnt even use as chainsaw bar oil nowadays.

With no filter on modern paved roads and modern multiweight oil
i think most people go 1000 miles minimum before changing it.

I think others go by color.

A few have sent their oil samples off to get tested and the report tells them how many more miles you can go before the additives are used up/dirty - probably the best solution.

Best solution is to drive your A and drive it longer distances to get the acids and moisture "burned out" of the oil/oil pan every drive as thats what does the damage.