Thanks very much. Just siphoned some off and the oil looks black - time for a change I think.
Hope you get away with that .Thanks very much. Just siphoned some off and the oil looks black - time for a change I think.
Turns out to be down to a loose fitting dipstick cap - bent the plastic tabs in a bit so they grip the end of the tube - and no more popping out. Rarely do I find a simple and no cost solution to a problem on a p38.