Don't know about the 582 but for the 912 one gallon was more than enough.
Don't know about the 582 but for the 912 one gallon was more than enough.
Jim Ott
Portland, OR
Kitfox SS7 flying
Rotax 912ULS
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.