Race car logo

• Popular Formula One formula briefly
• Motor oil brand that sponsors NASCAR drivers
• "Interstate Love Song" band, briefly
• Sponsor of some NASCAR drivers
• "Interstate Love Song" band, briefly (I had it on colored vinyl)
• Letters on Richard Petty's race car
• Motor oil choice
• Oil treatment brand since 1954
• Sister brand of Armor All

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
commercial motor oil additive, probably an initialism (acronym) of scientifically treated petroleum . As the street name of a type of psychedelic drug, attested from 1967.