Allison M20L transmission

[witold933252763]

What is the oil quantity in an Allison M20L transmission.
Wit

 

[marcel921]

Should be 6-6.5 quarts. See if you can find an owner's manual though. Don't hold me to it.

 

[Tinker]

The pressure for reverse is lower than foward and neutral. I think reverse is about 90psi and foward and neutral about 120 to 125 psi. I can see this at idle shifting at the dock on the gauge.