Related Clues:
- "Help!"
- 'Help us!'
- Indy 500 inits.
- [I'm in trouble here!]
- Three short, three long, three short
- Brand for a gearhead
- Richard Petty sponsor
- Familiar telegraphy sequence
- Additive at Indy
- Ship's distress signal
- Desperate call
- Brand at a gas station
- Worrisome letters
- Engine oil additive
- ''Gilligan's Island'' signal