RE: Filling Propane Tanks
Mark makes a good point (max fill, 80%, should be around 2.4 gal) but it
just dawned on me that I don't know how the the fill system on the Westy
tank is supposed to work.  I know for certain, on a well handled fill, I had
one fill that went 3.3 gallons.  I may have been ripped off some, but I was
watching and that fill was done by the book.  IIRC that was on my '85 AFTER
the regulator had been replaced by a local RV shop.
I've seen many references to the 'auto stop' valve, but I'm not sure how it
works.  I've assumed that it is a float type valve inside the tank, shuts
off the intake flow at 80% full.  And the bleeder valve is there to allow
room for the liquid propane going in.  On my '90, I can't recall any fill
over about 2.5 gallons now that I think about it, but several at that level
when things were still running fine, seemed to have plenty of propane.