I would personally try to disable the meth kit before making a trip like that,just for precautionary measures1)running out of methanol ,2)hot summer months combined with unlimited,extended driving,with extra heat transfer =more strain on engine and especially on the meth kit,3)Bad gas from different states could affect performance,made two 2400 miles trips and felt the overall lack of performance due to the poor quality fuels in some states,and the long term durability and progression of the meth kit to function properly would lead me to be more hesitant on making such a long trip.Z