oil sight glass almost impossible to gauge

[fazersharp]

The oil level gauge is nearer the front of the engine so the oil moving back when under hard acceleration tends to turn the light on. The oil pressure is still fine, but that red light is disconcerting!
I fill to nearly the top of the window, a couple of hundred mL more than Darssi suggests won't cause problems. A torch may help you see what's going on behind the window.

Yep a couple of months ago whilst cranked over and exiting a roundabout and accelerating away the light came on for about 2 seconds, I looked and the leavel was fine -between the marks like it has allways been, so I put about half an egg cup worth of oil in and no light since