Quaker State 5W-20 Higher Mileage Engine Motor Oil, 1 qt.

I usually run pennzoil high mileage in my 16 year old truck that has over 160k miles, but I wanted to give quaker state a try since they're also under the SOPUS umbrella and a little cheaper. I currently have about 500 miles on this oil change and I honestly can't tell the difference as my truck still runs just as smooth.

I have a 1998 chevy PU. Changed oil to Defy 5w30 4 months ago still on the full mark. I purchased it in 2004 have always had to add oil before change. There is no oil on the market to compete with DEFY. Also no old engine oil smell. So muchof a great oil.

I like QS HM Synthetic Blend formally knows as QS Defy however I question the products advertising as "boosted zinc levels" or "Zinc is king" since it is an SN rated oil. SN governs zinc levels to be no more than 800 ppm. I wonder is QS technical support would respond with some information about this?

Been using QS for over thirty years, and I haven't been disappointed yet. Engine loves Quaker State and simply purrs. We take long driving vacations every year, and wouldn't rely on anything else to withstand all the miles we rack up while gone. QS really does stand for quality surpassed!

I have a 1998 Honda CR-V all wheel drive that has 260,000 miles on it. I have been using Quaker State High Millage motor oil every 3,000 miles. I seriously doubt that if it wasn't for Quaker State High Millage synthetic motor oil blend the engine would not have made it this long. I wouldn't trade my '98 CR-V for a another one half it's age because I know what's been going inside this one.