[This review was collected as part of a promotion.] I use this oil in my 97 5.9 Dakota since it was rebuilt by me. I have 247k on the truck that was mostly done by a 5.2 motor that at one time had nitrous on it. It still runs and I still have it. I got the truck at around 100 miles and it was abused and nasty on the inside with no air cleaner or pcv valve. This oil cleaned it up considerabley after 3 oil changes and correcting the filters. I have always used pennzoil in all of my vehicles over the year's and have had no failures.

My husband does all our oil changes...only product he'll use. His work car is a Subaru with 368k miles on it...runs like a dream! When other brands are on sale and I want him to save a few $? Nope! Tried and true...not taking a chance with another brand. Thanks for a great product.

[This review was collected as part of a promotion.] I started using Pennzoil when I got my first car in 1980 my father used it and all my uncles so I did I glad my car when I got it had way over 100,000 miles but the guy that owned it before me took care of it also with Pennzoil oil I use 10/30 weight in most cars still unless I put the high mileage oil in now my 3 grow kids use Pennzoil also and my granddaughter is 9 but her father is a ASE Mechanic and uses Pennzoil also so she will too! so that is 4 generations using Pennzoil products and wouldn't use anything else.

[This review was collected as part of a promotion.] I've been using Penzoil for the past 40+ years. The engines were 40hp Volkswagens, 12hp snow blower, through 700hp drag racing Ford 502 engines. Never any lube problems. I will continue using Penzoil in all of my vehicles/engines. My 3 kids also use Penzoil in all of their vehicles.

Dont use anything but Pennzoil, I drive from texas to California every 6 months and pennzoil has been my go to. Works best in my car and even helps on my gas mileage. Will never use a different brand and will pass that down to my kids. Thank you for the amazing product.

[This review was collected as part of a promotion.] When I was young I assumed all motor oils were the same. Then I put cheap oil in an old pickup. The engine was much noisier and I was afraid it would fly apart. I immediately went to the auto parts store and asked what they recommended. The counter guy was a weekend racer who swore by Penzoil. I drained out the junk oil and put in Penzoil. The engine quieted down immediately. I have used nothing but Penzoil for the last 35 years.

[This review was collected as part of a promotion.] Multiple cars and suvs over the years and I've always trusted Pennzoil. It's always kept them running smoothly until my next oil change. It's a tradition passed down from my father when changing the oil in all of his vehicles.

[This review was collected as part of a promotion.] Its the only oil I ever used and ever will use. My father taught me the importance of choosing the right oil when I was young. He always used pennzoil so that's what I use to this day. I recommend this oil to everyone who has a oil change question.

[This review was collected as part of a promotion.] Since I was a teenager my father told me to always use pennzoil I ve drove some very hard run hand me down vehicles with many miles all well over 250,000 miles all still running like a top All of which only had pennzoil products used in them My whole family swears by Pennzoil its the best product by far way better than all the rest

[This review was collected as part of a promotion.] Iv'e used Pennzoil all my life I can also tell that this product keeps the internal parts of the engine Clean . I know this because I have replaced valve cover gaskets on high millage engines that have nothing but Pennzoil used in them.