I changed the oil - took well over 5 l of oil out of it (should only have 4.5 I believe) and changed oil filter. I added 4.5L of the correct oil and it is still buzzing when reved. The oil light flashes as normal when you start the ignition, and goes out once the engine starts. As soon as you rev it the light and buzzer start up. Is it electrical? where do I start? want to go camping on tues....
