My father and I had a repair business for 30 years, and we used Pennzoil for all our engine work. It always held up well in a variety of engines, kept them running well for our customers. Today I still use Pennzoil in my own vehicles.

I love Pennzoil, and always use it! My father retired from there and has past away now and I have a big collection of Pennzoil stuff,so I would love to have one of these

[This review was collected as part of a promotion.] Penn oil has been a top notch product in every engine I have very owned. From my 1960 ford falcon to my 2013 chevy sonic to my husky lawnmower I will never use anything else.

[This review was collected as part of a promotion.] 112000 miles no problems. My whole family uses this product and no problem with any engines from cars to trucks.

A relative used this(not the racing version) is his Chev V8, straight 30w, when he set a drag racing class world record. He says it never let him down. That's good enough for me too!

[This review was collected as part of a promotion.] I have been using this product in my racecars for years and have never had an oil related failure!

[This review was collected as part of a promotion.] I work for a drilling and irrigation company and we us penzoil on every one of our gas powered vehicles and equipment. two trucks we have our from the 90s and still run great thanks to penzoil!

[This review was collected as part of a promotion.] My hubby only uses Pennzoil to maintain his high mileage truck. We depend on our truck as we pull a fifth wheel across Michigan and need a good running truck. Sweepstakes entry

[This review was collected as part of a promotion.] Do I use this in my antique car and have never had a problem. I only change the oil once a year and I rely on it to keep the motor in good health thank you again

[This review was collected as part of a promotion.] I only run Pennzoil in everything I own and I have 9 cars 2 mowers and a tractor I run Pennzoil in