Hot topic? Clarification on Winterization
Raptor 400 clarification in simplest form…
1 - winterization = draining engine from all relevant points (5 if my memory serves me right)
2 - if one chooses not to drain, is running the engine to temp to allow for thermostat to open and then filling with antifreeze equally as beneficial as #1?
3 - for those of you who drain. Do you THEN fill up with antifreeze to avoid corrosion?
4 - Opinion, what’s best? #1, #2, or #3?
I recognize these examples do not include oil and filter change, fogging (if one likes to do it), filling tank and adding STABIL, draining ballast and winterizing ballast pumps (running backwards and forwards and/or running antifreeze in reverse), and all the other necessities (fluid exchange/top off, bleach in bags, etc).
I’m comfortable with winterizing. Just wanted to seek advice on BEST practice.
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Hot topic? Clarification on Winterization
That raptors are closed loop cooling system so you only need to check the engine coolant is ok for the coldest temps you will see during winter. No need to warm engine to open thermostat. Engine coolant should be changed every 2 seasons.
Raw water cooling loop. This is the system you need to drain with the blue plugs/crossover hose/impeller housing. Seems each year, Indmar slightly moves the drain points.(my 2018 was different than my 2021). The idea is the same though. The drain points are all you need to do. It’s really that easy. The antifreeze method works too, but I prefer the drain points…….why you may ask….. because the Indmar manual says so.
For the record, I have done both methods successfully.
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