Originally Posted By: buster
True.
Pennzoil doesn't back up any long drain capability, like Amsoil or Mobil 1.
And most users have no desire to stretch drains out to the lengths that Mobil 1 and Amsoil push. Once most folks get near 7000 miles tops, they are getting edgy about changing their oil. Many folks won't even make it that far before they are having trouble sleeping. That being said, Wally World currently has PU in 5 qt jugs for $21. That makes it a no brainer for many folks over Amsoil or Mobil 1. And if many folks who use something like Amsoil or Mobil 1 were totally truthful, I would be willing to bet that the vast majority don't even go anywhere near what the oils are capable of. It is hard for most folks to get their minds around 15,000 to 25,000 mile oil changes. Just do a sidewalk survey and you will find this out.