Propane use is generally determined by your usage habits. More in winter, more if you cook inside a lot, etc..
It won't take long to get a idea of how long that will be.
2011 351RLTS Eagle, Mor/Ryde suspension & pin box
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS
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