Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post - ONAN 5500 Gold Marquis Rookie

bncinwv · 12-10-2012, 03:18 PM

All I can offer is my limited knowledge after having used ours for two years now. It should be "exercised" once a month during the winter with a load applied. The manual recommends about an hour a month. There is no winterization needed. It can run for extended periods of time provided it has fuel and oil, if it is propane, it will suck a little over a gallon an hour. A 30 pound tank has about 7 gallons and a 40 pound tank has about 9 gallons, so run-time is limited. I would not advise leaving it on when you leave the site. We do not have an exhaust extension but have experienced the need for one and are looking at the "Venturi" type exhaust system that clamps to the side of the rig to get the exhaust above the rig's roof for the wind to disperse it. One thing about winter is they can be subject to dying dependent on the outside temperature due to the vaporization process of the propane. Hope this helps and I am sure more seasoned users will chime in if I am off-base on anything.
Bingo

12-10-2012, 03:18 PM	#2
bncinwv Montana Master Join Date: Feb 2007 Location: Winfield Posts: 7,327 M.O.C. #6846	All I can offer is my limited knowledge after having used ours for two years now. It should be "exercised" once a month during the winter with a load applied. The manual recommends about an hour a month. There is no winterization needed. It can run for extended periods of time provided it has fuel and oil, if it is propane, it will suck a little over a gallon an hour. A 30 pound tank has about 7 gallons and a 40 pound tank has about 9 gallons, so run-time is limited. I would not advise leaving it on when you leave the site. We do not have an exhaust extension but have experienced the need for one and are looking at the "Venturi" type exhaust system that clamps to the side of the rig to get the exhaust above the rig's roof for the wind to disperse it. One thing about winter is they can be subject to dying dependent on the outside temperature due to the vaporization process of the propane. Hope this helps and I am sure more seasoned users will chime in if I am off-base on anything. Bingo __________________ Bingo and Cathy - Our adventures begin in the hills of WV. We are blessed by our 2014 3850FL Big Sky (previous 2011 3750FL and 2007 3400RL) that we pull with a 2007 Chevy Silverado Classic DRW CC dually.