Intake water cooling system antifreeze
Posted: Tue Oct 20, 2020 10:30 am
Hi group,
I'm looking for recommendations on an antifreeze for the raw water intake cooling system (the exhaust system, open loop). The green antifreeze, ethylene glycol base, has beneficial engine additives but it's also toxic and I winterize my boat in a community with drinking water wells. So I won't use the green. Is the pink RV type, propylene glycol, sufficient? After changing other engine fluids I plan on running 2 gallons through the system and shutting down. Are there any non toxic antifreezes that are better for the engine?
Thanks.
I'm looking for recommendations on an antifreeze for the raw water intake cooling system (the exhaust system, open loop). The green antifreeze, ethylene glycol base, has beneficial engine additives but it's also toxic and I winterize my boat in a community with drinking water wells. So I won't use the green. Is the pink RV type, propylene glycol, sufficient? After changing other engine fluids I plan on running 2 gallons through the system and shutting down. Are there any non toxic antifreezes that are better for the engine?
Thanks.