Hello together, I had a change of oil two weeks ago with my V40. Now the engine stutters from time to time when giving gas, but also not always. So only a short little turnip and then it is good again. I noticed that he now loses some oil. I was then on Saturday again in the workshop that they look, could not find anything for lack of time on the fast but. At least with the oil drain screw everything is so tight. Would come from higher up. I wanted to have the spark plugs changed anyway, then look again more closely. Now my questions: Do you think the stutterers disappear when the spark plugs were changed? The in the workshop meant the oil is still too thin liquid and the drop wears off with the time when it has become thicker by the operation. If not there would be a quite good means that would unwrap the seals and seal them. What do you think about it? Would be grateful about a few good tips VERY!!!