It's The Only Oil I Use In Every Engine I Own Or Have Ever Owned! And The 1998 Ford Explorer Has 175000 Miles And Still Runs Like It's Brand New!

[This review was collected as part of a promotion.] This is the oil I have always used in all my engines

[This review was collected as part of a promotion.] great oil u can count on in most conditions i reconmoend it

I use nothing else in my vehicles, lawn mower and pressure washer. All of which are more than 10 years old.

[This review was collected as part of a promotion.] The only oil that has been used in the family for 70+ years

[This review was collected as part of a promotion.] we always use pennzoil its cleaner oil and it makes your car not have so much pollution

I've been using Pennzoil in my engines, cars, trucks and boats, for 50 years. I've never had a major failure of a lubricated part. That says it all!

[This review was collected as part of a promotion.] Started using it in my 78 F-100 with 400. Best desicion I've made. Really affordable and reliable

[This review was collected as part of a promotion.] ...I...BUY 20/50...I GET A BETTER OIL PRESURE...TAKE TIME TO WARM...UP...YESSS...

[This review was collected as part of a promotion.] Have always trusted your products and see no reason to stop now! Simply the best!