Nikhil
Honorary ///Member
ChefDJ said:I do not believe in flushing, as more than one person has told me that flushing may actually be more harmful than good, and that you get most of the old rubbish out without flushing compared to flushing.
From the research I’ve done high mileage gearboxes should not be flushed. However lower km box’s should be. As for getting more dirt out without flushing is not true, when the gearbox is flushed new fluid is constantly pumped through the box until the fluid coming out on the other end is clean. Note that auto boxes have an oil cooler which contains a significant amount of oil in the lines and the cooler itself which will contaminate your new oil again. Therefore flushing removes more crap from the system :thumbs: