FINDLAY, Ohio -- Marathon Petroleum Co. LLC, The Armor All/STP Products Co. and Afton Chemical Corp. have agreed to introduce STP branded gasoline performance additives to the Marathon-branded retail ...

Vanguard of engine care, STP, has launched a unique and immensely versatile treatment, with many uses, designed to keep all 2- and 4-stroke petrol and diesel-powered engines running at their best.

Car DIY is on the increase, thanks no doubt in part to the financial squeeze, but an unnecessary fear of the unknown is preventing simple cost-saving DIY amongst many motorists, according to STP, the ...