Related Clues:
- Longtime Nascar sponsor
- Big letters in racing
- Marine Mayday
- Help wanted notice?
- Auto additive
- Message that's often repeated
- Alert at sea
- Product at a gas station
- Brand of motor oil additive
- "The racer's edge"
- Motor-oil additive
- Skipper's distress call
- Call for assistance
- Desperate trio?
- Message frantically tapped out