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Engine additive: Abbr.
Answer for the clue "Engine additive: Abbr. ", 3 letters:
stp
Alternative clues for the word stp
- Gas treatment letters
- Fuel additive brand that's a major NASCAR sponsor
- Automotive additive brand
- Brand advertised on many Nascar autos
- Crankcase additive
- Big inits. in fuel additives
- Logo on many a Richard Petty race car
- Racetrack logo
- Auto additive with a mostly red oval logo
- Ultra 5-In-1 Fuel System Cleaner brand