[This review was collected as part of a promotion.] After some work to get my 2010 Mini Cooper running well again, the mechanic recommended this synthetic. So far, so good. The engine performance has been maintained, running nice and quietly, and I am not losing oil anymore. I have also been able to go to 6 month oil changes instead of 3 month oil changes, which easily offsets the slightly higher price.

[This review was collected as part of a promotion.] I use and will continue to use full synthetic in all of my had run engines. Those are all my small engines and my SUV with the turbo on it. Anything that is labeled eco-boost or has a "t" in the model name has a turbo in it and probably already calls for it. Pennzoil has never let me down and I'll continue to use it.

[This review was collected as part of a promotion.] I recently received the Pennzoil Full Synthetic motor oil and immediately noticed a difference in the way my vehicle ran after use. The oil, which is certified by the American Petroleum Institute, allows my car to run longer between oil changes and increased the fuel efficiency. Over time, choosing full synthetic compared to regular motor oil will save you plenty of money. I have even noticed a difference in the way my car drives, most likely based on the advantages this oil provides to my engine. I would highly recommend this motor oil, especially to anyone looking to protect their vehicle while also saving money in the long run.

[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 used Pennzoil Synthetic motor oi in my vehicles for years. I have had good luck with it. I drive a lot of highway miles at high speeds and I believe that Pennzoil is the best choice for high speeds and longer driving times. I run 8000 miles between changes.

[This review was collected as part of a promotion.] This is a great oil. I have used it on foreign and domestic cars with over 100,000 miles. Always last long and a good choice overall. I will definitely continue using pennzoil products in the future..

[This review was collected as part of a promotion.] Great motor oil! I switched to synthetic on a few of my high mileage vehicles and I’m convinced that Pennzoil has increased the life of them! I know they say you can run longer between oil changes with synthetic but I still change it at 3k. 180k on one of my trucks and still runs like new!!

[This review was collected as part of a promotion.] My Porsche loves this synthetic oil, it runs my car smooth and very efficient. It leaves no residue and takes care of my engine. Definitely something to invest in if you want your car to last long and continue to function perfectly

[This review was collected as part of a promotion.] I've only recently made the switch to using Full Synthetic oil on my SUV and chose Pennzoil. I change my engine oil every 5,000 miles and extremely happy with the performance of my engine after the first oil change to Pennzoil synthetic. The SUV runs smoother and quieter than before. Engine runs smoothly after

[This review was collected as part of a promotion.] What can I say but Pennzoil has been and always will be my number one choice of oil for all my vehicles! It's always kept my engines running smooth and has never let myself or anyone I know down. I will continue to use it for every vehicle I own.