[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.] Ever since changing to this oil in my minivan ive noticed a major change in the performance of my van. It has improved my gas mileage and made my van run more smoothly. Before this oil my van would have a small miss fire but after this oil ive had no problems at all with it. Over all this has been the best oil ive ever personally used and I won't go back to my old stuff.

[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.] I used this pennzoil in my last oil change and it made a big difference in performance and engine noise. It stayed cleaner longer for better protection. I like the convenient 5 quart jug which makes filling up simpler. I would definitely recommend giving this a try specially for the value you get at the price point.

[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.] Lasted 5k miles without burning just as it should. I put in about 3k miles a month, and it lasted me the whole months and a half before i got the time to do the next oil change. Definitely gets the job done

[This review was collected as part of a promotion.] I will start by saying that if you are looking for a detailed analysis of the oil itself, you should look for a chemist or petroleum engineer. So, I won't comment on what the oil is made of itself. Instead my review is on using the oil. I do my own oil changes and have been using Pennzoil for a while now. I really like the oil. My car has been running fine and have had no engine issues. I have nothing but a positive experience with Pennzoil. Now, if you want to decide which oil to get my honest opinion is that the brand doesn't really matter. As long as it's a major brand it will be fine. The most important thing is to make sure that you get the right oil. Check your owner's manual or pop the hood. The oil type will be written on the oil cap.

[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.] Everybody needs a good quality oil for their car or truck. This is it! Pennzoil is a trusted brand and I use it all the time for all my vehicles!! The containers have a nice "grab handle" on them which make it easy for pouring!

[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.