That’s what I’d been thinking through this whole thread, Lee.
Not to disparage Joe in any way, but first of all I’m not sure I’d have supplied the fluid, much less without for certain knowing the amount prescribed. An excellent fluid price from some entity or whatever, I’m sure he had his reason. That opens one up to partial responsibility if the job isn’t done right. But far more than that, what reputable shop wouldn’t have questioned 8 qts, and if they didn’t know already have not at least researched the correct amount (was it an Allison certified shop & tech?). Though the dipstick might seem indicative initially, filters and hoses as Marty points out affect things; if the tech was so neglectful as to not operate the engine/tranny afterward as is proper practice, and then recheck things, they bare the burden.
Joe is very lucky there’s no apparent harm. And he certainly deserves credit for catching the problem, parking his coach, and diligently and successfully pursuing more thorough information. Not all “truck” shops are motorhome savvy. Some for lack of familiarity won’t service them. Sounds like Joe got one that had a green tech, or cash dictates service there more than good business practice does.
There are few places I will take our coach for chassis work, and none are particularly close to home. Convenient proximity isn’t even on the radar when it comes to service, unless we’re on the road, and circumstances dictate harder choices. Then this Forum and careful research step in.
Joel