Friends,
A while ago someone was talking about motor oil and they had mentioned that Pennzoil and a couple others weren't the best due to a wax or paraffin content. I have always used Pennzoil simply because that is what my Dad always did. I have no qualms about switching and was wondering if brands like Havoline or Valvoline or Castrol are better? My vehicles are too old to switch to synthetic so I'll stay with dinosaur. Don't mean to open a can of worm but I was just wondering if one is a bit better than the others. I looked around the net but found nothing definite.
Thanks, Steve