Related Clues:
- Grain alcohol
- Engine additive brand
- Speedway letters
- Auto maintenance letters
- Product with the old jingle line 'One little can will keep you running free'
- Granatelli canful
- Big name in auto additives
- Gas additive brand
- Slick 50 rival
- Big inits. at Indy
- It once had a jingle with the line "One little can will keep you running free"
- Motor Up alternative
- Additive that sponsors NASCAR racers
- Slick 50 alternative
- Engine performance aid