Ran this oil in my race jeep for 4 seasons and never let me down.

Used it in one of my other cars that I sold and it did great!

It's a classic and always reliable like the perfect spouse you know your car is in good hands

Been using this oil several years ago, & it has really done it's job...would recommend to anyone.

Works great in my vintage Chevy! Wouldn't use anything else!

i always used pennzoil in all my cars never had a problem great oil

Used this oil for several changes. It did a great job.

Good oil, doesn't burn as much as other oils in older engines

[This review was collected as part of a promotion.] none well i,m a man of few words and I am still no longer short

Used this in a 1986 Chevy S10 Blazer. Provided good lubrication propreties, changed the oil every 3,000 miles, no problems.