[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.] The oil is good to change. I did a partial clean and not a full flush, and feel the quality of Pennzoil is better than other generic oils to use in a car. I am satisfied with the quality of the product and would recommend it.

[This review was collected as part of a promotion.] I've used Pennzoil Platinum or Pennzoil Ultra in my 3.6L 2015 Jeep Grand Cherokee & my wife's 2017 Ford Edge since day one. Both vehicles are now over 90,000 miles and run great. The biggest difference I've noticed between this and oils I've used in the past (in other vehicles) is with cold weather starting. With Pennzoil synthetics both of our vehicles start without hesitation or that dry/clunky noise on winter mornings.

[This review was collected as part of a promotion.] I have for a very long time wanted to try a full synthetic motor oil in my vehicle, after using this product I will never go back to regular oil again. I notice o get better gas milage and the car runs much smoother.

[This review was collected as part of a promotion.] I have been using the Pennzoil full synthetic for my car and it is the absolute best It gives my car full protection for those critical engines’ parts. With Pennzoil full synthetic, you will need fewer oil changes that a conventional motor oil. It comes with enhanced wear protection for high and low temperate. I have noticed my engines runs more smoothly and the car feels like and drive new. The Pennzoil helps present sludge and deposit build up. I use this oil up to 10k miles and then do another change. I trust a name like Pennzoil for my engine and I never do an oil change without it.

[This review was collected as part of a promotion.] Cleaner pistons, better fuel economy, made from natural gas not crude - what's not to love? The 5 quart bottle is convenient to both use and store in my shed for future use. This is the only synthetic oil I will use for my portable generator in Florida to help keep it ready for emergencies.

[This review was collected as part of a promotion.] My Porsche loves this synthetic oil, it runs my car smooth and very efficient. It leaves no residue and takes care of my engine. Definitely something to invest in if you want your car to last long and continue to function perfectly

[This review was collected as part of a promotion.] Ok I've been using Pennzoil for a long time now. Specially the full synthetic. I change my oil between 5k and 7k miles and I've got over 200k miles on the car. I feel like the oil is one of the reasons my car still runs strong.

[This review was collected as part of a promotion.] I decided to use this in my 95 explorer since it has trouble with dry start and I can say this definitely helped out during the heated days. Oil seems to keep the same protection as 5w20 but flows much easier for that old oil pump. I’d definitely recommend this to anyone having a slight lifter tick.

[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.