Customer Reviews for Pennzoil High Mileage SAE 10W-40 1 Qt. Synthetic Blend Motor Oil

use it on my gmc-suv with 175,000 miles-feel it adds extra protection to a high mileage engine.

Our old 2001 Ford Runs better with this oil , just runs smooth

Me and my immediate family use pennzoil only and for many many years. 35+. It is absolutely fabulous for your vehicles. Number 1 for us. Keep up the good work

We use Pennzoil High mileage oil in our SUV and have for many years because it is dependable and has ensured that our engine runs smoothly. We have over 140000 miles on our vehicle and still runs as if it has less than 50000

I've ran this in my car for about two years now and it works great! Going on 218k now and runs like new

I have been using this oil since I passed 100,000 milles. No problems, I hope that it takes me to 500,000 miles. HALF-WAY THERE!!!

Pennzoil last longer and looks cleaner between changes.

Will only use pennzoil in any car I own. My car has lasted 200,000 plus miles .

Been using it since buying my vehicle, just holds up longer than anything!

STARTED USING IT AT 75,000 . 200,000 LATER , STILL USING IT!

Penzoil hi mileage is great stuff would definitely recommend.

I use it all the time it works really good it lubes everything you want like you want it to

Started using Pennzoil HiMi in my personal car and the difference was nearly instantaneous although Hemis are know to tick even when brand new this oil softened the tick and oil pressure ran much more in a range I liked. Being a mechanic and a auto repair shop owner that went from offering Valvoline to Pennzoil customers also notice the difference in their cars. Working on high end cars knowing their picky "oil choices" Pennzoil really works also if you own a Hemi V8 manufactured up to 2010 (example: 2000-2010) Do not use full synthetic ive seen plenty of Hemis come to an end early in life running synthetic I highly recommend Pennzoil Conventional and Conventional High Milage and all of Pennzoil motor oils

i switched to pennzoil high mileage when you first came out with it several years ago,i have a 2002 chevy impala that has 207,000 miles and uses none between oil changes and always use your high mileage 5w30 for my car,nothing beats pennzoil for the best performance and and protection for my car i definetly recommend it for everyone with a vehicle with high mileage

i trust Pennzoil over almost anything I can think of. I just do not understand advertising the 20 weight oil for autos over 75,000 miles. With that much engine wear, I want something with a t least a 30 weight. I am not talking 10 W 30 either.

Switched at 170K to Pennzoil 5W-30 High Mileage... 1) Up until 168K I had been using Pennzoil or Castrol synthetics. 2) I just changed at Toyota: - plugs - coils - plenum gasket - valve cover gaskets - front VVT solenoid - coolant NOTE: Pictures of front valve-train show differential heating/drain-back of oil. Right-hand side to left (towards timing gear) the color is "med-amber" to "brown," no sludge, but some "crusting"; above average in cleanliness, BUT what appears to be a design error in even oil flow. First highway trip after work by Toyota dealer engine used 3qt of Castrol 5W-30syn in 700mi. Stuck ring?! (Note: most it ever burned was 0.5-1.2qt synthetic in 3,000-3,500mi; have owned the little truck since 48K) Post atypical oil consumption: 3) Put in Castrol 10W-60 syn...NO oil loss on road trip of 900mi. ZERO loss. 4) Followed with 4:1 Pennzoil 5W-30 High Mileage + Marvelous Mystery Oil. (rolled around town for 1 week to clean out engine --first time) 6) Changed oil to correct weight & filter (Penn 5W-30 High Mileage + Toyota factory filter as usual) 7) Second road-trip to same destination, 900mi...ZERO oil consumption. NOTE: Toyota mechanic and I know the engine design and sludge problems associated with this engine class. My oil change interval since purchasing has always been 2,500-3,500mi. plus I change the coolant per the recommended time/mileage. Main engine seals replaced at 90K with timing belt. (Did not replace valve guide seals.) MY MECHANIC (former NASCAR Master Tech, now with Toyoda'r, recommended switching to conventional high-mileage oil to see it is would solve the recent consumption. Switching to Pennzoil appears to have done just that --no consumption. CAUTION: I have been told that once you switch to high-mileage oils to never switch to non-high-mileage oils. Apparently the oil seals once they "swell" need the additives to maintain that state. Heck...Pennzoil High Mileage seems to work and it is totally inexpensive! The Toyota oil filters are good for 7,500mi. I think I will just drop the oil every 2,000-2,500 at the local outdoor place before changing the filter at the 5K mark. I am off the extreme long life of keeping my precious Red Line ester-based OR Pennzoil Ultimate synthetic oil in the pan for some extend period (which for me was 4K/oil change). ---I am just going to do the OCD guy-thing and change my oil every 2,000 with this Pennzoil. Why not?!! -David in NC 3/2016

My dad had bought a 97 chevy over 12 years ago,all he used in it was penzoil 10-W30,it has seen 338,000+ miles and the motor runs like a racehorse,havent thrown a rod or had a tick in it ever,keep up the good work pennzoil!

I must say since I switched over to Pennzoil High Mileage, my 2002 Dodge Caravan has been running far smoother, and has more pep. I will continue to use this for the life of my van.

[This review was collected as part of a promotion.] I use this in my car and it works great I love Pennzoil products

[This review was collected as part of a promotion.] I've used many different brands of High Mileage Oil. I'm old school I change my oil myself. At oil changes I noticed that other brands of oil felt like canned lubricant oil. Towards the end of the oil change cycle my oil pressure would not be slightly lower than usual. When I used Pennzoil High Mileage Oil it felt the same coming out of the oil drain plug as it did when I poured it into the crank case. The oil pressure was never affected with Pennzoil. My brand of oil is Pennzoil simple as that. Always has been, always will be.

[This review was collected as part of a promotion.] I have bought this for my vehicle for the past five years my vehicle is running better since I've changed to this oil. My vehicle has 210,000 miles on it and runs of the day I bought it

[This review was collected as part of a promotion.] Bought this and I believe it made a big difference in performance.

[This review was collected as part of a promotion.] A trusted name with a trusted result of proven product!

[This review was collected as part of a promotion.] I switched from another brand.. It was a very good decision.

[This review was collected as part of a promotion.] I use it every oil change and my car is still running awesome with over 200.000 miles on it

[This review was collected as part of a promotion.] I've been using this for a little while now and I am impressed!

[This review was collected as part of a promotion.] Switch to high mileage oil after I reach 100000 oil seem to be great and doing its job. still looked pretty clean after a 3500 mile change

[This review was collected as part of a promotion.] I have use Pennzoil for year and have great luck with it.

[This review was collected as part of a promotion.] We put alot of miles on our truck every week and this oil holds up great between changes.

[This review was collected as part of a promotion.] I've used this in my truck ever since my truck hit 200,000 miles and now it's over 255,000 and hasn't missed a beat.