Rotax 912 Coolant Type

Hi Franklin,

The waterless coolant may not boil over, but it carries with it about a 20F - 30F temperature penalty. If I were you I would just stick with DexCool 50/50. Water has far better heat absorption and release vs the waterless coolant. The orange DexCool is an extended life coolant and many in the US use it.

Find your engine serial number, it is stamped on a data plate. If it ends in -01, there you go. 

Have a look at this video: 

https://www.rotax-owner.com/en/videos-topmenu/rotax-minute/448-newcylheads

If your engine has the "new" style cylinder heads, which have actually been around for quite a while now, you must NOT use the waterless coolant.

Depends on what part of the World you live in - Australia; most if not all coolant specified for European cars ( multi metal cooling systems) is satisfactory -its Red as a concentrate - dark pink when mixed 50:50 (the recommended ration for max benefit) with distilled/pure water.