coolant

jeremy shaw · Joined: 12 Sep 2012 Posts: 22

Sorry guys again for beginner questions. The manual says to use a mix of distilled water and coolant compatible with aluminum......at the track I'm racing on Saturday you can only use water....this ok for engine? Should I be checking coolant and temps more regularly?

Nick Weil · Posted: Tue Sep 25, 2012 7:15 pm Post subject:

Water only is actually required at most tracks and will not damage your motor. HOWEVER, you should use DISTILLED WATER or the minerals in tap water can attack the aluminum and leave deposits, as well as eventually destroying the springs on your water seals and causing premature engine rebuilds due to a leaky water seal.
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Nick Weil
Authorized Rotax Service Center and Dealer since 2002
2004 Team USA Rotax Worlds Finals DD-2 Driver

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Justin Martin · Joined: 27 Mar 2012 Posts: 328

Always use distilled water first off. It will rust LESS. Secondly double check to see if they allow ANYTHING. Some tracks often allow water wetter because it isn't anything like normal antifreeze. Much less slippery and gummy. Often a radiator spill with water and water wetter evaporates similar to water alone, not nearly as bad as antifreeze or other coolant.

However just go by what the track wants!! Wink

Joe Ricard · Posted: Wed Sep 26, 2012 4:36 am Post subject:

Straight water cools better than mix with glycol anyway.
Water wetter does help and also contains enough lubricant to help the seals last a bit longer.
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Arrow AX-8/ Rotax Sr.