[Fot] Non-LBC group question

[EDWARD BARNARD]

Lister's: I'm writing a magazine article about Indy roadsters (Kurtis', Novi', etc) and am examining the Studebaker/Packard powered cars. In 1963 Studebaker purchased from three gentlemen a little known company named Chemical Compounds, which had an oil additive product they were selling from the trunks of their cars. Studebaker gave Andy Granatelli, then head engineer and chief test driver for Studebaker the position of CEO of the newly acquired company which he then renamed STP. Now my question...does anyone know for certain the meaning of STP? I am getting mixed answers from The Racing History Group. Most say it stands for Specially Treated Petroleum, while a few are saying it stands for Studebaker Test Products. Do any of the FOTers know the "true" side of the story? 
BTW, later I will relate this past Saturday spent with three great guys, Johnny Rutherford, Lloyd Ruby,  and Jim McElreath, at a car show we had. 
Thanks - Ed - 
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