A clarification regarding my previous comments regarding traces of antifreeze in transmission.

I KNOW that a slight trace of antifreeze in an Allison transmission will destroy the clutch faces. My previous warnings were from a "be on the safe side" standpoint. MB clutchfaces may or may not be harmed by this minute trace.

I offered the warning for what it's worth. To me it seemed to be a pretty cheap thing to do. That is, I bought a transmission fluid, dunce cap looking funnel and labeled it ATF, and hung it on the shop wall. It has never seen anything but ATF. Seems like a simple thing to do.

Your MB clutch faces may not be susceptible, but they very well could be.

Have a nice weekend,