[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.] 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.] We use this oil in our Subaru Forrester 2010, it really helps the engine run smoothly. Our car has over 125K so it does burn some oil, and it is always nice to have this on hand to top off when needed.

[This review was collected as part of a promotion.] We needed a Full Synthetic Oil that would work on our vehicle to keep it running in top notch condition. The synthetic oil by Pennzoil is a great value for our cars. It has the right amount of additives to insure that your car is running at its best condition oil wise. It is easy to pour and the handle is easy to grip and carry. The container is also easy to store while not in use.

[This review was collected as part of a promotion.] I have been using the Pennzoil full synthetic for my car and it is the absolute best It gives my car full protection for those critical engines’ parts. With Pennzoil full synthetic, you will need fewer oil changes that a conventional motor oil. It comes with enhanced wear protection for high and low temperate. I have noticed my engines runs more smoothly and the car feels like and drive new. The Pennzoil helps present sludge and deposit build up. I use this oil up to 10k miles and then do another change. I trust a name like Pennzoil for my engine and I never do an oil change without it.

[This review was collected as part of a promotion.] I really like Pennzoil Full Synthetic motor oil. Pennzoil has been around for over 100 years so they know what they are doing as far as motor lubrication is concerned. This oil should be great in my lawn equipment and generators.

[This review was collected as part of a promotion.] This oil is a good quality oil. I would say my engine has been running a bit smoother since I put this in my car. My car has always been a bit touchy, but since using this I notice it has been a bit more smooth. I won’t go back to my other oil.

[This review was collected as part of a promotion.] This is a great quality and amazing oil for your car. I suggest you shake this bottle very well as the additive falls to the bottom of the container and you want this to go in your car correctly the additive looks like a sandy type material on the bottom of the container. The oil is just right to get the engine running well. This truly works wonders for my car.

[This review was collected as part of a promotion.] As a long-time customer of Pennzoil, I value the quality and consistency of their full synthetics to keep my motor clean and running. This product is up to par with the Pennzoil I've used in the past, and I wouldn't expect anything less! A great American company putting out quality products!

[This review was collected as part of a promotion.] I take my car's maintenance seriously, and I perform all my own maintenance on my car - that way I know it is done correctly. I always have trusted Pennzoil products - specifically their motor oil products - for my cars because I know they stand up to harsh driving conditions, which my car faces daily. I have kept my cars' engines running without problems for well over 100K miles, and I attribute that to the quality of Pennzoil's motor oils.