Castrol Six Hour
| Venue | Amaroo Park |
|---|---|
| Location | Annangrove, New South Wales 33°39′3″S 150°56′1″E / 33.65083°S 150.93361°E |
| Corporate sponsor | Castrol |
| First race | 1970 |
| Last race | 1987 |
| Duration | 6 hours |
| Most wins (rider) | Ken Blake, Michael Dowson (3) |
| Most wins (manufacturer) | Kawasaki, Yamaha (5) |
| Circuit information | |
| Length | 1.94 km (1.21 mi) |
| Turns | 10 |
The Castrol Six Hour was a motorcycle race for production motorcycles, held in Australia from 1970 through to 1987.