Last seen in:
- Wall Street Journal - Jul 17 2021 - The Name of the Game
- Wall Street Journal - Jun 17 2019 - Colorful Characters
- New York Times - Aug 23 2015
- Newsday.com - Mar 22 2013
- Newsday.com - Mar 22 2013
- Wall Street Journal - Jun 1 2012 - June 1, 2012 - No Admittance
- Wall Street Journal - Jul 15 2011 - July 15, 2011 - Dynamic Duos
- Newsday.com - May 1 2011
- Universal - Nov 13 2010
- Newsday.com - Sep 9 2010
Related Clues:
- Letters at Indy
- Logo on many a Richard Petty race car
- Motor oil brand
- Indy supplement
- Auto additives co. that hints at this puzzle's theme
- Son of a Gun! Protectant maker
- Letters in a red oval
- Auto additive brand
- Auto-additive initials
- The Racer's Edge
- Brand known as "the racer's edge"
- Iconic Nascar sponsor
- Talladega decal
- Racecar fuel additive
- Sponsor at some NHRA events