[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 love my Pennzoil Full Synthetic oil! I use it in all of my vehicles. I used the Pennzoil Full Synthetic 5w 20 in my 2010 Honda Accord and it continues to run like a champ! I change my oil as soon as the "Oil Life" reaches zero and I have not had any engine problems. I am a firm believer that if you change your oil on a regular bases with quality oil, your engine will last you a long time. I have been using Pennzoil in my 2003 SUV and it has 257,000 miles on it and still runs great! I highly recommend Pennzoil!

[This review was collected as part of a promotion.] I’ve used many oils in the past but penzoil produces such a High quality oil and it lasts long and stays relatively clean for long periods of time. We generally use penzoil product on all our machines because of the high quality of the product.

[This review was collected as part of a promotion.] Put this stuff in your vehicle and you won't have to worry about it for 7,000 or 8,000 miles. Great value, and cheaper than at any of the auto parts places. Numerous oil tests on BITOG will confirm, this stuff is one of the best performing synthetic oils available, and the price is great. This one always does well, very little burns off - and it comes out still in pretty good shape. Honestly can't think of a good reason not to buy this oil.

[This review was collected as part of a promotion.] Pennzoil has always been a well known and trusted brand.This oil is great.It worked well in my vehicles and gave my motor a nice oil change that it needed badly.This oil allows my vehicle to perform top notch.This oil protects my engine horsepower.This oil leads to a much better performance.

[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.] I've always used oil weight of 5w 30 in my jeeps engine. I was never really picky about the brand of oil I used. As long as it did it's job. I was so wrong. I've been having a few miner issues with the performance of my Jeep. When I talked to my mechanic he said it's your oil, try a different brand. So Pennzoil it was and I'm glad I did. My Jeep engine sounds better. It was quick and easy to change my oil myself and I'm loving the Pennzoil brand. Great performance!

[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’ve always used penzoil and bought my daughter a car a few months back and figured I’d try the synthetic this time. It’s a fantastic product and will protect my daughters car for miles to come and put my mind at ease.

[This review was collected as part of a promotion.] This oil is great! One of the best decisions of ever made was changing my own oil. Pennzoil is always my go to brand. Their oil is top notch and always gets the job done. I will be using pennzoil for the foreseeable future and I recommend this product for anyone looking to do an oil change.