LO5 92’ 125k miles. I run Royal Purple HM 5w-30 with k&n filter, same like one of the other gentlemen, I change when I don’t like the color anymore. Always runs 100x smother afterwards. I also add liquimolly upper cylinder lubricant every other change and add it 300 miles before the change.
Thanks a bunch, the rims are 15” and the tires are 31x10.50. The paints new tho, not even a year old yet. Got it done for 1100 with that joe Biden check.