Related Clues:
- Logo on many a Richard Petty race car
- Motor oil brand
- Indy supplement
- Auto additives co. that hints at this puzzle's theme
- Intoxicating agent
- Son of a Gun! Protectant maker
- Letters in a red oval
- Auto additive brand
- Kind of alcohol found in Athlone
- Kind of alcohol from Athlone
- Drinking alcohol
- Auto-additive initials
- The Racer's Edge
- Brand known as "the racer's edge"
- Fermentation product