[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.

[This review was collected as part of a promotion.] Pennzoil Full Synthetic is all I use on my vehicles. I have a Jeep and of course I change my own oil. I love how easy this is to use and the quality it provides to my vehicle. My Jeep is running smoothly.

[This review was collected as part of a promotion.] I decided to try Pennzoil's Full Synthetic motor iol. Pennzoil is a long-standing brand known forever for quality. I llike that this oil is designed from natural gas instead of from crude oil like other synthetics meaning less impurities right off the bat. That means better performance and longer lasting at a higher level. I need that because I put a whole lot of miles on my vehicle and besides the fuel, your oil is the 2nd most important fluid your engines uses. I'm seriously thinking of trying their Platinum Plus oil next. With Pennzoil you know that you're always getting the best there is.

[This review was collected as part of a promotion.] Full synthetic is great for my wife's car. Got these to keep in her trunk, she gets paranoid when her oil goes below 15 percent so she can keep this for those days. Until I can get around to doing the oil change.

[This review was collected as part of a promotion.] I have for a very long time wanted to try a full synthetic motor oil in my vehicle, after using this product I will never go back to regular oil again. I notice o get better gas milage and the car runs much smoother.

[This review was collected as part of a promotion.] I decided to use this in my 95 explorer since it has trouble with dry start and I can say this definitely helped out during the heated days. Oil seems to keep the same protection as 5w20 but flows much easier for that old oil pump. I’d definitely recommend this to anyone having a slight lifter tick.

[This review was collected as part of a promotion.] I used the Pennzoil Full Synthetic 5W-30 in my Chevrolet 6.0 after verifying it is Dexos approved. My mechanic commented that it is excellent oil. It functions well, holds good oil pressure and the engine ran cool and quiet.

[This review was collected as part of a promotion.] I had an oil change using the Pennzoil full synthetic oil and my car seems to run very well. The 5w -20 oil is working to keep my engine clean and protect against friction. I had my mechanic use it and my car runs great.

[This review was collected as part of a promotion.] I use the Pennzoil Full Synthetic oil for my F150 super duty and have the bets performance. This oil goes a long way and easy to change out. I used 6- 1 quart bottles. Easy to pour, I seem to never spill when using the little ones.

[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.