I Have Used Pennzoil For Many Years In My Vehicles. It Is A Very Good, High Quality Product That I Would Recommend To Everybody.

i have used penzoil in all my trucks and had no problems at all it cleans and protects very good ....love it

[This review was collected as part of a promotion.] I've noticed my older vehicle runs better with this oil

[This review was collected as part of a promotion.] Best all around lubricant, for every day use in extreme temperatures.

[This review was collected as part of a promotion.] I mean it's ok, I run royal purple in my rig but used pennzoil for my grandparents car for their last oil change and it seems ok

[This review was collected as part of a promotion.] I only run Pennzoil motor oil in all of my vehicles... it never fails to exceed expectations...a beautiful golden, clear, hard-working oil.

[This review was collected as part of a promotion.] I never see a difference except in the price. What can I say I'm not the guy that takes his motor apart after trying oil.

i have been running pennzoil in my mercruiser engine for years and never a problem.

Keeps my engine running, when nothing else seems to wanna work

I run Pennzoil in my vehicles to make sure to get the full life out of them