“I don’t have to be convinced of how great your lubricants are. I used to own and run over-the-road trucks, specifically a 1999 Volvo tandem axle tractor. It had a 13-speed Eaton transmission and a 550 horse 1850 torque Cat engine.

I used the 50 weight engine oil in the transmission and your 15W340 engine oil in the engine. I gained fuel mileage and power and was very impressed with the difference in the overall smoothness.

...My buddies thought I was nuts when I said your synthetic literally made the engine run quieter!”

—Joel E. Griffith, customer

“I have a ’74 GTO with a 462 engine. I’ve been having a problem with it running too hot. I’ve tried using different pulleys, fans, thermostats and even built an air dam! Nothing has really helped. I went to get an aluminum radiator …but it would have to be custom made for about $800.

I don’t have that kind of money to spend. A salesman handed me a bottle of Purple Ice. He said it worked great in his Olds. I said, ‘I’ll try anything once.’ Since then I’ve driven around town and on the freeway on cool and hot days. To my amazement the temperature has never gone over 200°! THANK YOU, THANK YOU, THANK YOU!!!”

—Anonymous customer, Akron, Ohio