not sure about these things, as just in having to add on another fuel tank. not in there workings.
sure great if you have a cab over camper, on your diesel truck. a class A-B-C? you might already have a on-board fuel supply. but in a 5er or a tt? i think not so much.
for a 5er or a tt. great maybe? if you also have a diesel gen built in.
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