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Old 09-27-2015, 07:09 AM   #1
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Winnebago Owners Club
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how many gallons of antifreeze needed?

I have a 2010 Winnebago Adventure 37F. I intend to pump in antifreeze this year. Anyone know how much antifreeze it will take to?

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Old 09-27-2015, 07:33 AM   #2
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Our 40 foot Dynasty with aqua hot takes between 4 and 5 gallons.

Tom and Barbara in Delaware, USAF Retired Aircraft Crew Chief
2001 Monaco Dynasty Regent DSO FD - 40 ft DP with Tag Axle - Towing a 2003 Jeep Wrangler

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Old 09-27-2015, 07:40 AM   #3
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Unless you have a washer I'd get 4. Better to have a little extra than not enough. Also I recommend the Prestone RV antifreeze. It is just a dollar a gallon more than the pink stuff, but it smells much better, doesn't taste as bad, and washes out more easily when you go to de-winterize.
Larry & Cheryl Oscar, Louie, Ranger & Henry (our Springers)
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Old 09-27-2015, 08:47 AM   #4
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I do our coach with a gallon, maybe gallon and a half. How much you use will depend on coach equipment (like ice makers and washing machines which will add to total by quite a bit), as well as hot water heater by pass kits and source selector valve for water pump. After that, your experience doing the job will be a factor. Safe bet you won't be using as much the 4th or 5th time you've done the job.

2 biggest tips - make sure the water heater is bypassed prior to pumping anti freeze, and do not put anti freeze in the fresh water tank.
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
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Old 09-27-2015, 08:56 AM   #5
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I have same floor plan. IF you drain and by-pass the water heater, you'll use a little less than 3 gallons. Pour the balance into the P traps. Also, don't forget to drain the water lines to and from the ice maker's solenoid valve and remove and drain the under sink water filter.
2016 EC Aspire 42RBQ / 2014 CR-V
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