The Clue
Sponsor at Indy (3 letter answer)
The Answer
STP
Tags
Notes
The answer STP is seen frequently, appearing about once every 130 puzzles.
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Pit crew's canful
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"The Racer's Edge" sloganeer
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Its slogan is "The Racer's Edge"
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Longtime sponsor of racing's #43 car
Definition
STP as a noun:
1. (STP, s.t.p.) = standard temperature and pressure