| Additive in some shampoos |
| Food additive (abbr.) |
| Additives for cafés |
| Engine parts |
| Genetically engineered, highly selective medical treatment |
| Auto engine parts |
| Goes kaput, as an engine |
| Aircraft-engine intakes |
| Guns (the engine) |
| Like a disengaged engine |
| Classic cars that were the first to have Ram Air engines |
| Reduce engine heat, in a way |
| Engineers' colleagues |
| Additive identity element |
| Additive in some tissues |
| Additive to shampoo and shaving cream |
| Additives to improve the smell of auto emissions? |
| Barmy (Spanish) — engine (abbr) |
| Car fuel additive |
| Aircraft-engine enclosure |
| Fire engine destination |
| Provided fuel for an engine |
| Chinese food additive, perhaps |
| Additive to some tissues |
| Facial tissues additive |
| Type of servant or engineer |
| Rotating engine part |
| Keep the engine running |
| Acoustical engineer's concern |
| Maligned additive that the FDA "generally recognize[s] as safe |