Why have a refrigerator if you cant use it while driving?  Besides the
convenience, it takes so long to cool the thing down, camping ,or whatever
will be over just as the frig gets cool. The rule of thumb that I've heard
is : cant operate it off level-shut the frig off if you cant sleep on the
incline that you are parking on(3 degrees off level).Otherwise , it is ok
to operate while driving,and I do.I hate it when the frige pilot light
blows out. Just when I need something cold.In the archives, I have found
that the 2 reasons for this are .....1, the metal intake and exhausts are
not the exact same legnth.I never changed them , but the frige blows
out.Maybe this is not the reason for most extinguishings of the brewsky
useability preservation flame.   2..and more probable in my
experience...The exhaust ports are not perfectly perpendicular to the van
side and vent cover.Dont use the 2 regular or 2 phillips screws to draw
down on the vent flange,to make this alignment. Do it by
eyeball,bending ,and then pushing, and then tighten the screws.I dont think
a weak pilot flame is the cause. The "low" setting on the frig is not
condusive to  the flame blowing out when my  vent when properly aligned.I
once stuffed baffes,against recomendations, down either, or both
tubes,experimenting.No positive effect whatsoever-no matter how much junk I
stuffed,or how deap I stuffed it..