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 ...

Andy Granatelli, a flamboyant race car driver turned businessman who became a household name with TV commercials for his STP fuel and oil additives, died Sunday at a Santa Barbara hospital. He was 90.

FINDLAY, Ohio — Marathon Petroleum Corp.-branded gasoline with STP additives has been Top Tier certified. Top Tier certified gasoline is a standard for gasoline performance. The certification means ...

When the ‘King’ of NASCAR - Richard Petty - and famed fuel additives brand, STP, first signed a deal in 1972, it was the start of one of the longest and most successful sponsorship relationships in ...

Q: Are fuel additives a waste of money? I think Stabil works, but what about the others—the ones that claim to "clean" the carb and valves and give you better mileage and enable the fuel to burn more ...