[This review was collected as part of a promotion.] I used Pennzoil full synthetic in my generator and noticed how the generator ran more smoothly. The bottle design allows for easy pouring and transferring it out of container. Overall, a quality product.

[This review was collected as part of a promotion.] The Pennzoil Full Synthetic Oil is high quality and long lasting. It has the highest protection for my internal engine parts and will be a constant in the my oil changes moving forward. It has made my engine and car run smoothly which is fantastic.

[This review was collected as part of a promotion.] Pennzoil Full Synthetic motor oil is our favorite for our vehicles. This stuff allows us to go longer between oil changes and it keeps my vehicle functioning at it's top performance. Pennzoil is always our go to brand with motor oil as it's high quality, high performing, and reliable--this product is no different. It worked great, was easy to change oil with and my vehicle performs at it's best. Highly recommend

[This review was collected as part of a promotion.] What can I say, great product from a company that is well known and trusted. Feel comfortable knowing this will keep the cadillac running for years to come, great product and packaged well when shipped to my house.

[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.] Wow who would of thought I would get some oil right in time for my oil change. I was just about to go out and get a oil change and here comes my phone ringing about a try it and it was oil, I was so excited so I went out and changed my oil. Great brand of oil and it was such a quick job.

[This review was collected as part of a promotion.] I recently tried Pennzoil full synthetic 5w20. After I changed my oil and filter I noticed more power during acceleration and less delay in my engine. I highly recommend Pennzoil products to bring your vehicle to life.

[This review was collected as part of a promotion.] I got 6 quarts of Pennzoil Full Synthetic. I changed the oil in my car and used this for the replacement. I don't know if this is possible but after about 10days of use I truly think I am getting better gas milage. The car runs quieter than before. This is a good product and everyone should be using a synthetic in their car.

[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.] I use this oil in all my vehicles I think it last longer and works better during winter months. Keeps the vehicle running good don’t hear noises from like other oils that seems to run thinner after using for a month.