| I had that issue with M1 when I changed my Honda to it, but I was expecting the cleaning power and changed the oil and filter again after 2000km. 3 changes, 5000km intervals, have given me clean oil; only the first change was thick due to all the sludge that was cleaned out.
I also run M1 5W20 in my Acura, but it has only 38,000 km on it. In the MB diesel, I use Delo 400 and change every 5000km. |