Since my 2005 Pontiac Bonneville GXP has 167,000 miles, I only use this oil in the 5W-30 weight. Still holds 50psi of oil pressure, and barely uses any oil at all!! I ran a compression check a few months ago, and all is good in the cylinders. I would recommend it to vehicles with 100,000+ miles!!

I have been using this oil on an old rebuilt motor with approximately 140k miles. Ever since I blew my old one due to negligence, so I decided to start fresh with the type of oils I decide to put in my car. Pennzoil High Mileage for vehicles over 75k is just what I needed to maintain protection my "new" old engine. Even after 4-5k miles, I have yet to even burn 1 quart of oil due to its additives and seal conditioners.

I have been a fan of Pennzoil for most of my driving life. I have a 2009 Honda Element. I used Pennzoil conventional oil up until I hit 75,000 miles. Once I hit 75k miles, I immediately switched over to PHM oil. I now have 307,268 miles. I have never used any other oil. At 305,000 miles, I had to replace the VTEC controller and my valve cover gasket. Not only was the mechanic impressed with the mileage, but how clean the vales and top end were when he removed the valve cover to replace the gasket. I change my oil religiously on time with nothing but PHM. This vehicle has never known any other oil but Pennzoil. Thank you, Pennzoil! BTW, I currently have 307,268 miles and still running strong.

[This review was collected as part of a promotion.] I usually carry 2 quarts in my car because my Prius eats oil weekly. Every 600-1200 miles I'm down at least two quarts so I depend on Penzoil High Mileage to get to the next change. I'll be dropping a new engine in it soon but Illalways use Penzoil.

[This review was collected as part of a promotion.] I have been using this in my 01 Camry with 211000 miles and the engine runs great ! It is tempting sometimes to use cheaper oil, but this stuff I believe is extending the life of my engine and it runs the same as it did 10yrs ago!

[This review was collected as part of a promotion.] Owning an older model car means taking extra care for it as it ages. This includes oil changes. While I tend to lack on changes frequency, I know with Penzoil High Mileage, I can go the extra mile. It delivers every time. My old truck is a hard worker, and this oil can take the abuse. Reach for it, I do.

[This review was collected as part of a promotion.] I First used Pennzoil in my first truck, I now have a third and all still run great. I have torn two of them apart and neither have had oil problems ( even if I got lazy with the oil changes). I am a customer for life.

[This review was collected as part of a promotion.] I change my oil every 4000 miles with Pennzoil high mileage oil, since l went over 100,000 miles, and l expect another 100,000 miles. I drive hard off road and need a oil that meets my demands, that's why I run Pennzoil.

[This review was collected as part of a promotion.] I've been using this product for sometime now. I have a 98 Mustang GT and a 95 Lincoln Town car. The reason these ladies are still ripping it up and down the road is Pennzoil Synthetic for life. And then when that mileage creeps up I give them that old folk remedie Pennzoil Synthetic High Milage that keeps them acting like they did when they were young because, well, I'm not but I still like to go fast!

[This review was collected as part of a promotion.] Recommended by a professional, I have been using this oil in my 2001 Jeep for the last couple of oil changes. The engine has been responsive and not sluggish. Will continue to ask for the high-mileage oil for oil changes.