When I bought my car it was a fresh import and when I got it off the ship the oil was clean so I didnt bother changing it. 4000 miles later I changed the oil For mobil 1 5W-30 ESP fully sythetic. When i got the car it didnt use any oil but now it is. I have checked for leaks and theres nothing.
Is this oil too thin and getting burnt off somewhere. Would I be better off with a 10W-40 fully synthetic as thats slightly thicker and the viscosity for the UK should be fine as it doesnt get too cold or too hot.
Also can i remove the engine breather pipe from the airbox. Its there to recycle some gases to help with emissions, but that means im getting some dirty air into the engine. Is there a performance advantage to removing this pipe or will it effect the engines running?
Thanks
