What Coolant?

by John Tucci in 912 / 914 Technical Questions 5 years ago

What Coolant should I use to top off my Sling’s 912:ULS? It looks more pink in color than orange. Is it Dex-Cool? I did add some distilled water, after I noticed it at the minimum mark after my coast to coast flight.

I want to keep a bottle of “whatever” should I need to add more in the future.

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Re: What Coolant?

by Roger Lee » 5 years ago

Roger Lee

125 5.11k 4.52k

Yes they have pink coolant. It was usually automotive OEM stuff, but it's out there. If you need to top off use more pink or distilled water. I wouldn't mix this with others.
Or you could drain it and add some regular Dex Cool 50-50 (extended life (orange). Up to you.

APPLICATION: Asian automotive and light duty vehicles requiring a phosphate based OAT engine coolant

VEHICLE MAKES: Lexus, Toyota, Scion

FORMULATION: Ethylene glycol based. Silicate, borate, nitrite & amine free

PRODUCT COLOR: Pink

SPECIFICATION/PERFORMANCE LEVEL: ASTM D3306, JIS K2234

RECOMMENDED CHANGE INTERVAL: 150,000 miles* or 5 years of service protection

COMPATIBILITY: For best results, do not mix with conventional high pH, borate or silicate based coolants.

PERFORMANCE FEATURE: Aluminum Compatible

PRODUCT OPTIONS: Concentrate & 50/50 Pre-Diluted

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

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Re: What Coolant?

by John Tucci » 5 years ago

John Tucci

5 23 30

Thanks Roger. I think I’ll just add distilled water for now. I found OEM here : http://www.recochem.com/us/products/automotive_coolants_antifreeze/oem_extended_life_pink_antifreezecoolant

A location search shows several places to purchase near me. Now, should I go concentrate or 50-50 pre-mix?

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Re: What Coolant?

by Roger Lee » 5 years ago

Roger Lee

125 5.11k 4.52k

50-50

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

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Re: What Coolant?

by Bill Hertzel » 5 years ago

Bill Hertzel

13 1.95k 7.96k

SlingPilot,
We had a lively discussion about coolants a while ago.
You might want to read that thread.

https://www.rotax-owner.com/en/rotax-forum/4-general-discussion/6131-coolant#15749

Bill Hertzel
Rotax 912is
North Ridgeville, OH, USA
Clicking the "Thank You" is Always Appreciated by Everyone.

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Re: What Coolant?

by John Tucci » 5 years ago

John Tucci

5 23 30

SlingPilot,
We had a lively discussion about coolants a while ago.
You might want to read that thread.

https://www.rotax-owner.com/en/rotax-forum/4-general-discussion/6131-coolant#15749

Yes, thanks Bill, I’ve read that thread. My issue is, I’m trying identify the antifreeze in my aircraft. I know the type, 50/50 mix, but nowhere in either the plane maintenance or Rotax manual does it list specific manufacturer. Rogers answer put me on the right track. For now I’ll just be adding distilled water. The factory is closed for the holiday, I’ll reach out to them when they reopen. I want to keep a gallon or so on hand.

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