[This review was collected as part of a promotion.] I've changed my own oil for many years and switching to a full synthetic makes life a lot easier since it's better for your vehicle and lasts so much longer that conventional oil. Penzoil is a trusted brand that I've used for years so if you want oil the works better and lasts longer than regular oil, it's a no brainer!

[This review was collected as part of a promotion.] Pennzoil is a fantastic product, very high quality oil that you can put into your car and then have a lot of confidence it will do its job. Love the full synthetic as well as it allows for longer times between changes saving precious time. Solid oil and company.

[This review was collected as part of a promotion.] It was service time for my Lexus and it requires 5W20. Previously, it would get maybe 16mpg in town and 22 on the road. Average at best. After the change to this synthetic oil, my mileage improved a solid 1 mpg both in town and on the road. Impressive for something so simple.

[This review was collected as part of a promotion.] I got the Pennzoil - Pennzoil Full Synthetic. I got a Dodge Ram Pick up Truck and i do all my own oil changes and this is the only motor oil I would ever use . I would definitely recommend this to anybody looking for a really great motor oil for high mileage vehicle.

[This review was collected as part of a promotion.] This is a very good oil that produces a very good used oil analysis reports. It appears to do a very good job of keeping the internal clean, And although not designed as a long drain interval oil you can’t push the limit. For instance I’ve went 15,000 miles with a turbo.

[This review was collected as part of a promotion.] I’ve been changing my oil for many many years and Pennzoil is my go to oil. This full synthetic oil gives me confidence that it is going to treat my car right and not give me any issues. I’ve trusted Pennzoil for many years and hope to continue for many more to come.

[This review was collected as part of a promotion.] Pennzoil has always been a well known and trusted brand.This oil is great.It worked well in my vehicles and gave my motor a nice oil change that it needed badly.This oil allows my vehicle to perform top notch.This oil protects my engine horsepower.This oil leads to a much better performance.

[This review was collected as part of a promotion.] We have several older vehicles and when we started using it our cars started running better and more efficient. We highly recommend this product to our friends and family. It is very cost effective. We bought a whole case.

[This review was collected as part of a promotion.] You pay so much for your car, so you definitely want to use the best products for it and this oil is definitely something your engine will thank you for. I've never had any engine issues when using this type of oil and it runs smooth.

[This review was collected as part of a promotion.] This oil is priced well, and seems to work as well as other brands I have used in the past. The oil pours smoothly and quickly unlike thicker weights of oil, and was just the right amount for my 04 acura.