Founded in 1954, STP initially produced just one product — STP oil treatment. Thanks to strong word-of-mouth advertising from satisfied customers and a following among auto racers that believed ...

Engine oil additives make all sorts of promises about helping your vehicle's motor last longer and increasing your gas mileage. Here's what you need to know.

Assurance Intl Limited highlights its commitment to high performance through proprietary synthetic base oil technology and new additive packages. Energizer Holding, Inc. and Assurance Intl Limited ...