ok i know about the old mechnics trick in american made cars where you pour half a jug of automatic tranny fuild into your oil about 500 miles before you change it! ive always have done this to all my other vehicles with higher milage to clean it out but i hve never owned a germay car so will this mess up the motor or will it clean the inside like the rest of cars ive used this trick on!! and i know that you cant run certain ford tranny fuild through!! thanks for your help

 

Yes you can, but uncloging carbon deposits in a higher mileage motor can cause oil leaks that were not present before because the buildup was blocking it. If you do watch for minor leaks form the seal and gaskets.

 

Just purchase an oil flush, and follow the directions.