Forum Discussion
wolfe10
Oct 30, 2013Explorer
Only use pre-mix if you are positive you have 100% of the rinse water (preferably distilled water) out. This is very difficult to do on many systems unless you take loose and blow out lines to dash heater core, motoraid heater core, etc.
If you can determine the full system capacity from Winnebago, after the final rinse with distilled water, add 1/2 the volume in coolant concentrate and just top off with distilled water. Then, you will have a 50/50 mixture.
If you can determine the full system capacity from Winnebago, after the final rinse with distilled water, add 1/2 the volume in coolant concentrate and just top off with distilled water. Then, you will have a 50/50 mixture.
About Motorhome Group
38,761 PostsLatest Activity: Nov 21, 2025