Oil Change on the road

JDsdogs wrote:
While not a newb to RVing (many years), our upcoming trip will be our first of extended length.
Having been heavy equip mechanic for some years in the past, I do most of my own maintenance.
Now, I will be more than an oil change away from home and was wondering where others get their oil changed on the road.
With a class A, I'm guessing a truck shop of some sort.
Who do you look for? How does one go about finding reputable service on the road?

Not a beginner, but this might be considered a beginner question to those of you with experience.

Thanks in advance

I do oil changes myself,,had one done by Mr Lube in Edmonton Alberta and they charged me for rear axle oil change too,but after noticing the dirt mud covered bolts on the axle pumpkin I realized they never did open and drained it,,
Fool me once..