[This review was collected as part of a promotion.] I have been using Pennzoil motor for as long as I can remember. It has always done me good and never had issues with my motors in any of the cars I've owned. This full synthetic oil is absolutely the best in my opinion. Excellent in preventing engine wear, resistant to both over heating and freezing and is very high performance. I owned a Firebird and Camaro. A good plus is that its recyclable. I like that it comes in a 5 quart jug and the jug has 2 handles to grab onto. Also, the price is competitive to other synthetic motor oils. The best!

[This review was collected as part of a promotion.] This full synthetic oil is just like the Review Title says, "Super slick!" My engine runs really smooth with this oil. Obvious benefits of friction reduction of engine components have resulted in a boost in fuel economy. Granted, I don't have a physical/measurement comparison, since I have not taken my engine apart to do so, I'm confident it's doing what it's supposed to do.

[This review was collected as part of a promotion.] Cleaner pistons, better fuel economy, made from natural gas not crude - what's not to love? The 5 quart bottle is convenient to both use and store in my shed for future use. This is the only synthetic oil I will use for my portable generator in Florida to help keep it ready for emergencies.

[This review was collected as part of a promotion.] Very good oil I use this every oil change I would definitely recommend this to family & Friends.as they stand by there name and product I have used this for years and not one problem all you need to know is how to change your oil and you will be good.

[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 recently received this motor oil and glad I did. It seems like the performance in my Jeep is better and it is running smoothly without any sort of performance issues. I’d recommend it to anyone looking to upgrade their oil.

[This review was collected as part of a promotion.] I have been using Pennzoil for as long as I have been driving. I have never had any issues that were oil based. It works great, and has a great legacy behind it. I'll continue using Pennzoil in all my cars going forward.

[This review was collected as part of a promotion.] So I changed my oil at jiffy lube and always used the synthetic and I never knew how easy it was to change your own oil. This oil works great and I would recommend to use. My car has a 150k miles on it and it ran smooth

[This review was collected as part of a promotion.] I have used only Pennzoil products in my vehicles for years, it’s a trusted brand that always delivers. I’ve never had any issues with Pennzoil, and would highly recommend their products to everyone that would listen

[This review was collected as part of a promotion.] While its hard to notice a difference between various oils, I "feel" like the Pennzoil synthetic makes the car run quieter. The difference is very small but I do feel like I notice a difference when I use it. It does pour out very easy and doesn't spill too bad. I highly recommend Pennzoil Synthetic oil!