Bird
Epic Contributor
Egon, I think that oil will be just fine, but every one of those impact wrenches I know of recommends either 20W or 30W nondetergent motor oil. And while I can't say for sure, I think that's simply because the nondetergent motor oil is less likely to get past the oil seals and leak out. You won't have any problem as long as you keep some kind of oil in there, but they don't last long if it leaks out and you don't replace it.