fbpx

 

Could anyone indicate where I can find the following information in the Rotax manuals for the change of engine coolant.

Periodic maintenance period (Change interval) for engines using Evans NPG waterless coolant


Thank you.
  • Re: Engine Coolant Change

    by » 8 years ago


    Evans is not recommended anymore. It carries a 25-30F temp heat penalty and it;'s expensive. You can't top off the reservoir tank with anything, but Evans. I would change it by the 5 year rubber replacement time period.
    If you have an open air engine or live in cold climates the extra temp may not be an issue. I don't believe there is anything in writing specifically on when to change Evans.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell


  • Re: Engine Coolant Change

    by » 8 years ago


    Evans is good for the life of the engine, it doesn't need to be changed. If you needed to, you can add water or antifreeze to Evans, but you will loose all the benefits of the high boiling point and low freezing point and no corrosion. The only time you need to top up Evans is if you have a leak, as it won't boil over like a normal coolant containing water.

You do not have permissions to reply to this topic.