[This review was collected as part of a promotion.] I have used many oils on my 2014 Acura and have always consistently found the oil to be dirty during every oil change. But after trying out the Pennzoil synthetic for the car, I can totally see the difference. This is a very good oil and does a great job in keeping all machinery clean. It's definitely a high quality oil that dealers would use. Eventhough I don't need to change oil for a while, I'd love to keep changing every 4-5K miles, to keep the inside machinery clean and running smooth. I'd say this is the best oil you can find for your vehicles that you want to keep running longer, and ones that you drive daily. I'd definitely recommend.

[This review was collected as part of a promotion.] I have used Pennzoil for years. My dad used Pennzoil in everything when I was little. I got a case of synthetic oil for all of my annual services on all of my small gas engines. I have done all of my preventative maintenance with Pennzoil and never have had a problem.

[This review was collected as part of a promotion.] I prefer using a full synthetic oil in my cars. This Pennzoil 5W-30 has worked well and I have had no issues with it. The bigger jugs make it easy to pour in and cuts down on plastic with the smaller bottles. I recommend this full synthetic oil.

[This review was collected as part of a promotion.] This is a great motor oil! I use it in my car and it runs a lot better now! I recommend it to all of my friends and family that have cars or other vehicles that require the use of motor oil! It’s really great!

[This review was collected as part of a promotion.] This stuff does just what I need. The bottles are well packaged to prevent spillage, easy to pour from, and I have every reason to believe that the oil itself is of top quality. I can’t really say for sure as testing oil would take a very long time, but the car runs great and I have not seen any sort of accelerated oil leakage or burning. Would buy again!

[This review was collected as part of a promotion.] Pennzoil Full Synthetic Oil is tough stuff. This oil puts up with the real deal drive it like you stole it abuse. Dump the old and refill the life juice of your engine with this great stuff. came out looking like it went in. its a great reliable choice for all performance machines.

[This review was collected as part of a promotion.] Pennzoil full synthetic oil works great for my truck. I just did an oil change with it and my motor seems to run smoothly. It is greatly priced and it can be used in my boat, vehicle and my lawnmower which is amazing. It is a trusted repeatable company that I trust. It is alway good to keep an extra in the car. I used a different brand previously but I will be sticking to Pennzoil strictly!

[This review was collected as part of a promotion.] Full Synthetic by Pennzoil is nice. Very high quality and versatile motor oil product that can be used to service many kinds of vehicles. Easy to use and keeps vehicles running smoothly. I would highly recommend this motor oil from Pennzoil.

[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.] This full synthetic oil is made from natural gas and not crude oil. It helps to achieve better fuel economy. It also helps to keep the vehicle's piston clean. Overall a very well made product for your vehicle and highly recommended.