Originally Posted by dbarton291
Allison info is 10.6 quarts with standard sump, plus external circuitry (cooling circuit hoses). That's been that way for years. Best to put in 10 or so and then start it up, check the fluid level and adjust to cold run on the dipstick.
That sounds about right. It was the info in my Freightliner maintenance manual that was messing me up which said 13qts on one page and 16qts on another. The Allison manual, which I found somewhere online, said 10.6.
I have 3 gallons of TranSynd on standby, so I should probably be good.