coolant choice for 582 gray head?

[beeryboats]

Asking what everyone uses for coolant for their Rotax.
Thanks!

[jiott]

The water/glycol coolant is the only thing that makes much sense to me whether it is in a 582 or a 912 because you can always top off with water if you lose coolant somewhere away from home, as opposed to trying to find some Evans waterless coolant.

[Av8r3400]

Dexcool, the orange kind, coolant is what is recommended.

That's what I and everyone else that I know who has a Rotax, 2 or 4 stroke uses.

[beeryboats]

Dexcool, the orange kind, coolant is what is recommended.

That's what I and everyone else that I know who has a Rotax, 2 or 4 stroke uses.

Thanks! Is it a premix or do you have to dilute with water?

[Dave S]

Beeryboats,

I started with evans - worked OK but always concerned myself with what to do if I needed coolant on a trip.......last year with a radiator change went to 60% dexcool (diluted the full strength stuff with distilled/deionized water - I'd stay away from tap water) ......dropped both the CHT and oil temps. Thinking the smart money is on Dexcool too.

[beeryboats]

Dexcool it is then. Thanks guys!

[Av8r3400]

Thanks! Is it a premix or do you have to dilute with water?


I've always run a 50:50 mix with distilled water.

[jiott]

I know Prestone has the premix 50/50 Dexcool, I believe others have it too. I use the premix just for the convenience.

[Dusty]

Dexcool is a must on the grey head as it doesn't have a ceramic waterpump seal,
The blue heads can use either but dexcool would be the first choice.

[beeryboats]

Thanks guys. Anyone have any idea how much I need to buy? The system is totally dry at this point. I assumed about two gallons, but that may not be enough.

[jiott]

Don't know about the 582 but for the 912 one gallon was more than enough.

[beeryboats]

I bought two just in case. I really had to look at the back labels and even had to google dexcool to find the right one.