Not so much as an Allison question but perhaps your aware of the problem with checking the oil in the Allison 5 speed tranny.
Because you have to use the dipstick, its impossible to stab the stick and pull it out and get an accurate level reading. Because of the slosh and the length of the dipstick tube, it picks up oil all over the stick and you get a different reading every time.
I carefully drained the oil and replaced with Transynd to the exact amount recommended and see no sign of leakage so I'm assuming that the level is correct but I'd like the reassurance of an actual dipstick measurement.
