Personally, I'd vote for Pennzoil, simply b/c it has more 'stuff' in it's add-pack - it has both moly and boron for wear reduction and cleaning - while Valvoline has neither.
Yeah, I know that doesn't matter worth a spit, but I still 'feel' like I 'get more' for my money with Pennzoil.....
Yeah, I know that doesn't matter worth a spit, but I still 'feel' like I 'get more' for my money with Pennzoil.....