[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.] I exclusively use Pennzoil for my car, and it hasn't let me down yet. The engine performs the same or better in this than with the oil recommended by the manufacturer; the Pennzoil almost makes the engine "purr" softly when idle. From what I've read in studies of different oil manufacturers by independent third parties, Pennzoil is in the top 3-4 overall oils when it comes to engine wear, how clean it keeps the engine, and resistance to breakdown. In other words, it appears to be exceptional value for the quality of the oil.

[This review was collected as part of a promotion.] My vehicle takes synthetic oil but it's a big cost to get it changed so I invested into doing it myself. Normally I would get my oil change done at places, with a high cost, and a lower level oil but today...today! I will commit to changing it myself. No more stripped out bolts, no more leaks, today I get to batten down all my hatches and create an oil change I know won't go wrong.

[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.] As usual great product. I’ve been using Pennzoil for years and this is my first time trying the full synthetic I was hesitant at first because I didn’t know much about synthetic oil. After some research at homework I found out the Pennzoil is one of the top oils in full synthetic. I am completely impressed and amazed by the quality that Pennzoil is presented in this product I highly recommend anyone looking for a full synthetic oil.

[This review was collected as part of a promotion.] Pennzoil Full Synthetic 5w30 case of 6 is very convenient and a bit cheaper to buy than buying 6 individual. We have several vehicles so need to buy a lot of oil. Best oil we've bought in a while its quality is superb

[This review was collected as part of a promotion.] I just received this motor oil a couple days ago and I really like the way it makes my car preforms. I know when I am using this product my car is going to work the way it is supposed to do. I highly recommend this product for everyone.

[This review was collected as part of a promotion.] Penzoil is a premium brand for your car. It Cleaner pistons , better fuel economy, protects horsepower, unsurpassed wear protection, excellent performance in extreme temperatures Its was very easy to use in my car I did not get the big 5 gallon jug but six regular sized bottles. This is great for my car that does not have high mileage.

[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.] Pennzoil full synthetic oil is top quality. took the oil to my mechanic to do an oil change for me. He said that I got the "right stuff" and that Pennzoil is what he recommends. My car is running great and I am very happy with everything.