Quaker State 10W40 Engine Oil

I’ve used this on my wife’s Santa Fe since new never had one issue .

I've been using your product( the conventional advanced durability) in my 2003 buick century (its my first car) and let me tell you, the car runs so much quieter and you can't feel one vibration of the car when you pet quaker state in it, been driving for 2 years now and this is the only product ill use in my daily commuters. Thanks quaker state for this fine product.

I have been using Quaker state oils for 47 years.I never had a motor issue.I have 4 cases on hand for further use.This is the first time I ever wrote a review but wanted to let you know how pleased I am with this product. THANKS

Have used Quaker oil since 2006 in my wife's car, just turned over 300,000 miles on a Pontiac G6.

Ok, just an update today. I changed oil today at 3000 miles with Quaker state Advanced durability 10w/30 in my 1997 Camaro. Engine is running even smoother now. Truly unbelievable. I must’ve have gotten rid of that Castrol once and for all that was in the lifters and bearings. Great oil at a great price.

Starting from the beginning. I own a 1997 Chevy Camaro. I just had the engine replaced about 1 month ago. Drove 500 miles and changed oil with Castrol GTX. After 600 miles my engine developed a loud chatter. This engine has a roller cam and I should hear some noise but louder than usual. I came to the conclusion that this oil sucks. Changed oil again today with 10w30 Advanced durability Quaker state and what an impressive result! Very quiet and smoother operation. Thanks Quaker state. Your oil is most important to my ride from now on.

Been using 5W-30 Advanced Durability conventional oil in my supercharged Buick Park Avenue for 25k miles since owning the car. Not one single problem and the oil runs quiet and smooth. No matter if it's 100 degrees above or below zero in the dead of winter, car starts and runs smoothly every time! What's better is QS oil is priced a lot cheaper than the rest and works just as good! I expect to get several more thousand miles out of this car and engine before it gets traded in for something else. I plan to keep on using QS for the foreseeable future! Have to try some in my lawnmower and snowblower as well. Use this oil with confidence, your engine will love it!

this has always been the worse oil sold.cakes up under valve covers terribly.and in the oil pan.i worked in an engine rebuild shop for years and you could always tell when someone ran this garbage.

The oil literally made my car smoke. I took it out two weeks later went back to Mobil 1 no smoke. Don't believe the hype!

Bought a 2008 focus brand new. The only motor oil I use. I change it every 4000 miles.

I bought this for my truck and it keeps it running smooth.

I have been using this oil for 3 years and it works great

Truck runs better that I changed the oil and went with Quaker state. Will never use another oil

Every time I go on Youtube to see oil comparisons the only oils that I see are Mobil1, Pennzoil, Castrol GTX, Valvoline but I never see Quaker State in any of them because none of them compare to QS..I use your conventional oil as well as your synthetic oil, both are great. I drive a 2011 Dodge Nitro Heat, 4.0 litre engine and it makes my engine run smooth and it accelerates very quickly. when I go shopping for oil, your oil is priced way below the other major brands and that to me is a testament to your company that product outweighs the almighty dollar. thanks

I've only been using Quaker State Ultimate Durability for a year in my truck and my wife's car, and so far no problems. I changed it two days ago in my truck and will change my wife's oil this evening. I switched from Valvoline due to price, and so far I've had no problems using QSUD. Thank you!

Quaker State has been a family tradition since the 60's. My dad always used Quaker State in everything from mowers to his cars and trucks. I remember when it was called by names indicating an inferior product, but have never seen anything but great results from Q products. I am an avid fan of Quaker State and it goes in all my engines. It will continue to be my go to oil as long as it's continues to be produced. Thanks for a great product! .

I have used Quaker State in my vehicles for over 40 years. Never had any problems with using it putting hundreds of thousands of miles on different vehicles

Always keeps my cars running great... 5 cars in the family, only oil I will ever use.

I BOUGHT TU VISCOSITY GRADES AND I NEED TO KNOW IF THESE OIL ARE MINERAL OILS, BLEND SYNTHETIC OILS AND FULL SYNTHETIC OILS. CAN YOU GIVE ME A ANSWER?

I have used Quaker for most of my life. I have an older Volvo now and previously. My GLT VOLVO had lasted with over 435,000 miles w/o any major repairs. I attribute this to the Quaker State oil that I used in it. I will continue to use Quaker State oil for my S90. Thanks Quaker State!