Vust123
Junior Member
What is the best coolant to run in our bikes?
I heard of people using 'Water Wetter" but I think that it's made mostly for track days and does not have the properties you would want for long term street bike application.
i heard even at 70F on the track it will freeze
i heard even at 70F on the track it will freeze
The cooling system on this bike gets dirty fast, my original coolant was brown @ 11,000 miles when I replaced it!
I'm not on board with this statement -
It likely was running low on coolant for a long while as rust comes from the iron parts being exposed to oxygen. Even tho it didn't over heat the impeller aerates the coolant from spinning and head/cylinders can aerate it by boiling at surface from the temp going up. In short, air was mixing with the coolant creating a breakdown. It was very likely it ran for 5 months or longer with the overflow reservoir empty and sucked air into the system.
A good system will seal shut completely. When heated it builds pressure because the coolant expands as the blocks temp rises. Air that is in the coolant is compressed. What cannot be compressed and fit in the coolant system is pushed out into the reservoir (both air and water). When cooling off, i.e. turned off for hours, the coolant contracts and SHOULD pull a vacuum in the system which when coupled with an effective radiator cap will pull fluid in from the reservoir and fill the engines block full keeping the air out. Well unless that reservoir tank is empty!
Distilled water and water wetter. Been using it for years in the FZ6 and just put it in the FZR600 and FZR1000. Living in Arizona means I don't really have to worry about freezing.