Related Clues:
- Granatelli canful
- Letters on a motor-oil can
- Big name in auto additives
- Gas additive brand
- Slick 50 rival
- Aromatic mint
- Enclosure with a MS
- 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
- Cover letter letters
- Big car racer sponsor