Coolant question?

[Buckaroo]

As you know I'm the happy new owner of a 2007 CTSW with 680 hours on her. She has been meticulously maintained since new. She's now sitting waiting for the spring thaw.

 

Question: She has pink coolant fluid in perfect levels in the over flow presently. When I start flying her and I need to add coolant I want to use Evans. I'm not sure what coolant is in there now and I read something about not mixing coolants from other brands with Evans. Can I buy Evans and not worry about adding to the unknown pink stuff?

 

Thanks all!

[Doug G.]

No, and there is no reason to go to Evans. You would need to do a radiator flush, and, you run the risk of someone accidentally adding water.

It seems to me that Evans was no longer recommended, but I'll let the experts comment on that.

[Buckaroo]

I'm glad I asked this! If I have to add some I need to be up to date on this!

[Doug G.]

I think all of us use Dex Cool 50/50 premix.

[gbigs]

I think all of us use Dex Cool 50/50 premix.

 

Yes. This is the stuff.  And you should not need to be adding coolant...we added none in two years.  If you are seeing that problem it may indicate other issues.

[FlyingMonkey]

Evans runs hotter, too. Stick to Dexcool 50/50.

[Buckaroo]

Now if I order Dexcool can I add it to my unknown pink reservoir to tip it off?

[Tom Baker]

Now if I order Dexcool can I add it to my unknown pink reservoir to tip it off?

The Dexcool is available at most auto parts stores and also Walmart.

[cdarza]

I would also suggest not using Evans.   Runs hotter and you have the issue of not being able to add regular coolant. 

[Buckaroo]

Ok I found the coolant entry in the engine log book! Dex Cool 50/50 was used last.

 

Thanks everyone!

[gbigs]

Now if I order Dexcool can I add it to my unknown pink reservoir to tip it off?

 

You don't 'top it off'  There is a mid line on the reservoir that you should be at or just below.

[Buckaroo]

You don't 'top it off' There is a mid line on the reservoir that you should be at or just below.

Correct!

[Anticept]

Don't use evans. It's causing problems due to gelling from moisture getting into the system, and is now shunned. It's likely to be removed from any Rotax documentation soon.

[Buckaroo]

Yes I got to the bottom of that one thanks to the forum. ????