| Answer | Crossword Clue |
|---|---|
| STP | Popular oil additive |
| STP | Oil additive |
| STP | Motor-oil additive |
| STP | Motor oil additive |
| STP | Oil additive letters |
| ALOE | Bath oil additive |
| STP | Oil additive since 1954 |
| DRIER | Oil or ink additive |
| STP | Motor oil additive brand |
| STP | Brand of motor oil additive |
