[This review was collected as part of a promotion.] I've been using Penzoil for 33 years. It's the best for keeping engines clean and performing at their best.

Have had this in ALL my cars, kids cars and anyone in the family that I service the cars. Just had the top end of my 2002 blaze off for a intake gasket with 170k and the inside was clean as new!

We only use Pensoil in our vehicles. They run better and longer. Our last vehicle had 286,756 miles on it & we only used Pensoil in it. Two vehicles now, and Pensoil is all we use. Thank you Pensoil

I do a 5,000 mile oil change on my 2010 Toyota Highlander. I have about 70k each time its changed I ask the tech how it looks. It is always still golden in color.

Been using this in my 1995 GMC Sonona Pick Up. It's got 350,000 miles and still running strong. I change the oil every 5000 miles. Won't use anything else but Penzoil!!

My dad used Pennzoil forever and I was taught at a early age to always use Pennzoil. Our family has never had a engine failure and my 1993 Ford Ranger has always had Pennzoil when the oil was changed and it has over 300,000 miles on it and counting!

My van has made it to over 350, 000 miles and still running good I believe its because I only use pennzoil thank you pennzoil for making a wonderful product I swear by it whole heartedly

[This review was collected as part of a promotion.] My boyfriend is a mechanic for Trans Edge, a division of Mack Trucks. He actually does my oil changes and will only use Pennzoil! I highly trust his judgment and after an oil change my van runs GREAT!!

[This review was collected as part of a promotion.] Ive used pennzoil in all my cars my dad a grandpa do as well always was told to use it because it was the best I've never had any problems with my cars as far as oil goes so I will continue to buy pennzoil as long as I drive

I always use this product, in everything. I also encourage others to use Pennzoil. As a teenager, i saw how QS distroys an engine, how the oil ports clog up. I use Pennzoil sea30 in my mowers and Pennzoil 10w30 in my truck. If you want your engine to last, use Pennzoil. Holly