[This review was collected as part of a promotion.] I have recently switched my car over to full synthetic Pennzoil. It was certainly an easy process to do. It seems to make things run nice and smooth. I would definitely recommend this product and brand.

[This review was collected as part of a promotion.] There are few things in the world that I will buy name brand but motor oil is definitely one of them. When it comes to the care of my car and the safety of my family when we're out driving I trust Pennzoil. Their track record of quality over the years has stayed true and all my cars hav never had so much as a knock or ping even if I haven't changed my oil quite as often as I should have.

[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.] This oil lasted longer between oil changes. I also noticed my car drove a bit smoother and feel a lot better overall. I’ll keep using this oil since my car is sounding a lot healthier and I don’t have to change the oil out as often.

[This review was collected as part of a promotion.] You want to keep your car in excellent shape, always get nothing but the best. And Pennzoil Full Synthetic is what i rely on to keep my Highlander last longer. It's like knowing you're in good hands and Pennzoil is great quality for ease of mind.

[This review was collected as part of a promotion.] This Pennzoil Synthetic oil keeps my baby running good and she's happy so I'm happy. I got a couple 1 quart bottle's and i poured them all in perfectly as i always do. I check ever quart by smelling it and i also give it a little taste and Pennzoil has a great taste so that's how i know it's good. lol

[This review was collected as part of a promotion.] Wow who would of thought I would get some oil right in time for my oil change. I was just about to go out and get a oil change and here comes my phone ringing about a try it and it was oil, I was so excited so I went out and changed my oil. Great brand of oil and it was such a quick job.

[This review was collected as part of a promotion.] I really think that Pennzoil Full Synthetic motor oil is the most reliable, best quality motor oil a car owner can buy for their automobile, I have been a loyal user for years and have only seen great results. I would not use any other brand. I would definitely recommend Pennzoil Full Synthetic to anyone wanting a wonderful product for their vehicle.

[This review was collected as part of a promotion.] I recently tried Pennzoil full synthetic 5w20. After I changed my oil and filter I noticed more power during acceleration and less delay in my engine. I highly recommend Pennzoil products to bring your vehicle to life.

[This review was collected as part of a promotion.] Pennzoil is a brand that I have always admired. I use it with the confidence because quality is in it's name. There are many brands to chose from but you will never go wrong using Pennzoil Synthetic. It's a name that's been around a long time and you can trust that.