how many gallons of antifreeze needed?

[2010rvwinnie]

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

[tikitom]

Our 40 foot Dynasty with aqua hot takes between 4 and 5 gallons.

[PushedAround]

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.

[ahicks]

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.

[edgray]

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.