Type of coolant used in 912
New Rotax owner. Rotax recommends flushing the system annually or at 200 hours. What does everyone use?
New Rotax owner. Rotax recommends flushing the system annually or at 200 hours. What does everyone use?
Re: Type of coolant used in 912
by James Stricker » one year ago
Prestone DEX-COOL antifreeze+coolant - Ready To Use (50/50 Prediluted)
Re: Type of coolant used in 912
by Wayne Fowler » one year ago
Dennis it also depends on what type of aircraft you own. For example ELA 07S gyros have copper/brass tubing in their coolant system so I have to use a coolant sympathetic to that chemistry. Another trick. Make sure that your pressure cap is earthed as that aluminium octopus assembly connecting all of your pipes generally has a small (millivolts) reading which causes electrolysis and pitting to that component. Its replacement cost is in the order of Aus $900.
Regards.......Chook.
Re: Type of coolant used in 912
by Roger Lee » one year ago
Many just use Dex Cool 50/50 (orange is extended life in the US). You can buy it already pre-mixed with water or buy the concentrate and mix your own with distilled water.
In colder areas you could mix a batch at 60-40
Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell
Re: Type of coolant used in 912
by Dennis Morton » one year ago
The 912 is on a Rans S-19. Thanks for the info.
Re: Type of coolant used in 912
by Sean Griffin » one year ago
(In Australia and believe Europe) Castrol Radicool SF meets the Rotax standard (for mixed metal cooling systems).
Red/orange coloured coolant can be purchased as a pre mix or concentrate. I much prefer the concentrate so that I can be sure of the mixing ratio (Rotax recommence 50:50) and the quality/purity of the water.
Rogers suggestion "In colder areas you could mix a batch at 60-40" may have benefits for extremity cold operations (check with the coolant supplier) but will almost certainly reduce the thermal efficiency (heat removal) of the coolant.
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