Sevorg

thanks all - The oil isn't too full it's just below the full mark. Plus, I don't actually do that many short runs. Usually 70 - 120 miles. You have all got me thinking though. I usually check the oil at the service station round the corner when checking tyres. It's only 1.5 miles away so perhaps I need to check when it's had a bit more time to warm up. The oil (although bubbly) still isn't dirty, in fact it's quite clean. I'll have a look for the Bike article. I've got a few yrs back issues.

Thanks for all your comments.