I did an oil/filter change in my Vectra C last Wednesday, and put a little too much oil in: [URL]http://www.asktoby.com/miscimages/Dipstick.JPG[/URL] (Ignore the dark discoloured area... the oil level is as marked by "Oil level"). I thought it was okay, only just over max, so decided to wing it. I did about 80 miles on Thursday/Friday and all was fine. I've today done a 370 mile journey and after about 150 miles the light came on showing a car with a spanner across it*. To begin with it came on once every 30 miles or so and went off a minute later, but for the last 80 miles of the journey it was on solidly, and the car was in a reduced power mode. I'm assuming these two things are connected! Anyone got any insight, or tips on how to get a little of the oil out? I'm considering taking the oil filter off, dripping off the excess, and replacing it a few times to get the oil level down but I don't want to spoil the filter seal. The alternative would be to undo the sump nut a little, but that would be a major pain, jacking the car up again, and I'm not even sure how well that would work. I don't want to waste all the new oil I just put in! *fault in engine or transmission electronics.