Coolant and Oil

[Esser]

What is everyone using for coolant and oil? I know the Evans stuff is no longer recommended. The rotax-owner.com says any silicate free. Any comments?

I can start the engine for the first time as soon as I have fluids in her!

[Av8r3400]

I use orange Dex-Cool per the rotax recommendation.

I also like a synthetic oil, not a semi-synthetic, so I have used and still use Mobil-1 Racing 4T, 10W40. I run 92 octane, uncontaminated autogas or swift.

[Dave S]

Started with Evans originally when Rotax indicated it was better than sliced bread - went to the Orange Dex Cool when I changed out the old brass radiator for the aluminum radiator - both CHT and oil temps ran significantly cooler after the switch - don't know how much of that was due to the coolant and how much due to the radiator. It's going to be easier to find dexcool on a trip if needed compared to evans,





I started out using Mobil-1 Racing 4T, 10W40 (full synthetic) however, changed to Sport 4 (Semi Synthetic) because I don't always have access to lead free fuel on trips.

[kmach]

Dex-Cool and Aeroshell Sport Plus 4

[jrevens]

Dex-Cool and Aeroshell Sport Plus 4

Me too. (The site said my message was too short - now it’s not).

[Dave S]

OK, I am busted!.....When I said sport 4 in the earlier post, I meant Aeroshell Sport Plus 4.

[Esser]

Me too. (The site said my message was too short - now it’s not).

This made me laugh!


Thanks everyone for their input. I’ll see if I can get the Aeroshelk Sport 4 at the local FBO