I usually get 6-8 hours per 30# tank on the 5500W Onan. When it ran for multiple hours, it was running one AC, the refer and the converter and occasionally the microwave. I've been using the same generator since 2006. I transferred it over to the new 2019 the day the trailer was delivered. It only has 155 hrs on it.
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2013 F350 Lariat Ultimate CC LB
2019 3790RD
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