i use this all the time in my 86 c20 Silverado original motor im 2nd owner it runs great wouldn't trust any other oil

This is the oil that is recommended for our 1999 Chevy Tahoe and so far it has worked out great. Thanks PENNZOIL.

been using it in my 88 turbo Sundance since new. original bottom end and turbo. still runs like new.

[This review was collected as part of a promotion.] What I know is this, my dad used it, so do I, love it.

I've been a Pennzoil user and fan all my life and for all of my vehicle's lives. Excellent product, I wouldn't trust anything else.

I have stood by Pennzoil and Pennzoil has stood by me from my 19 year old pickup to my 12 year old riding mower plain and simple Pennzoil.

[This review was collected as part of a promotion.] I have been using Penzoil products for over 30 years. Top notch!

[This review was collected as part of a promotion.] I used this in my Mopar for several years without a single failure!

I have been using Penzoil for over 25 years, and have always had great mileage and a clean engine. Best product out there

Have been using this on all my cars. Thumbs up best darn oil I have ever used and the only oil I use and recommend period.