You can remove some bleeder valves and inject some fresh oil in there. But make sure you keep track of how much was in there in the first place, how much you add, and how many times you've done it. Don't want to add too much volume.
That said, a lowers service should definitely include cleaning out the sludge and built up crap, and a drain/fill won't accomplish that. I can see that being a quality department nightmare.
Oct. 5, 2022, 10:29 a.m. - Mammal
You can remove some bleeder valves and inject some fresh oil in there. But make sure you keep track of how much was in there in the first place, how much you add, and how many times you've done it. Don't want to add too much volume. That said, a lowers service should definitely include cleaning out the sludge and built up crap, and a drain/fill won't accomplish that. I can see that being a quality department nightmare.