Sorry guys posted this one in the wrong forum first off! - I have a 1.0L corsa C with 48K on the clock. There is a pretty bad oil leak that looks like it is coming from the region of the crankshaft oil seal behind the flywheel, as it is mainly coming out of the engine/box joint. There is also oil over other parts of the lower engine. A couple of weeks ago the engine managemet light came on after my son had been driving, and I discovered there was no water in the reservoir. After topping up it went for about a week needing water adding regularly, but now this seems to have settled and it isn't using water. I had the cylinder compressions tested and they are all 3 of them spot on. I though it might be the head gaskett pressurising the crankase and forcing the oil out, the leaks are that bad, but now I am uncertain. There is the usual mayonnaise on the oil filler as it only does short trips, but no signs of water in the oil on the dipstick or oil in the water. Any ideas? Do these engines usually leak badly??