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Coolant mixture: your opinions?

Dat Guy

New member
(In light of my current situation, I've edited out a comment I made here months ago.)
 
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I live out in the desert and I'm thinking about changing my coolant ratios to reflect the hotter temperatures for my 2013 RT. I was wondering if a few of you here wouldn't mind looking at my math to make sure I am adding the correct amounts and to see what your opinions on the mix are. It usually never gets any colder than 20°F in the winter but the summers it can get up 115 or 120°F regularly. Here is what I'm planning on using by mixing into a gallon jug:

1 gallon = 128 ounces

Distilled water - 97 oz =75.7%
Anti-freeze – 25 oz = 19.5%
Water Wetter – 6 oz = 4.6%

So basically what I'm looking at here is a 75% distilled water, 20% anti-freeze, 5% Water Wetter mix. I'm concerned about the freezing and boiling points being too high or too low at this ratio. Opinions? Corrections?

Also, does anyone know how much coolant should be added, in total? I don't have a manual near me and I'm in the store. Thanks folks!


I would make the mix:
Distilled water - 60% = 76.8 oz.
Anti-freeze - 40% = 51.2 oz.
WaterWetter - 6 oz

The anti-freeze has lubricant and anti-corrosion additives in it, needed to work in the Rotax engine. Synthetic oil will help keep the engine cooler in
hotter temperatures. That's IMHO.


Mike
 
I totally agree with Mike.
While the water will cool better, you still need some antifreeze to act as a lubricant. 75% water is getting pretty high.
You might be better off talking to a good radiator guy for a custom radiator adding an extra core.


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Interesting..!!

thats what I have been running for some time. Has worked very well throughout the time I have had it. No seasonal changes but..not recommended for units in colder climates....:thumbup:
 
My concern would be with boil-over. Just because your temp gauge says 215 (I know it doesn't because it's just blocks, but humor me), doesn't mean that a 220 coolant isn't boiling. What you aren't factoring in is the temperature of the coolant touching the cylinder wall. If you only have a 5 degree buffer you are probably getting a boil at the coolant to metal surface in some areas.

Right now I'm running a 70% water, 30% coolant with Water Wetter. But I'm going to try something new this year.

I can't recommend this personally, but I'm certainly going to try it. If my research is good, it will give me not only a cooler running engine, it will also protect better against freeze and boil over compared to my current concoction.

Be careful not to use a coolant with abrasives (silicates, etc.)

LIQPERF-COOL-02_is
dynotest_combined4-600x379.jpg
 
(In light of my current situation, I've edited out a comment I made here months ago.)
 
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One thing to remember is 100% water under 15 psi doesn't boil until 250*F at standard temp and pressure. The real reason for the antifreeze in warm climates is lubrication.
 
My concern would be with boil-over. Just because your temp gauge says 215 (I know it doesn't because it's just blocks, but humor me), doesn't mean that a 220 coolant isn't boiling. What you aren't factoring in is the temperature of the coolant touching the cylinder wall. If you only have a 5 degree buffer you are probably getting a boil at the coolant to metal surface in some areas.

Right now I'm running a 70% water, 30% coolant with Water Wetter. But I'm going to try something new this year.

I can't recommend this personally, but I'm certainly going to try it. If my research is good, it will give me not only a cooler running engine, it will also protect better against freeze and boil over compared to my current concoction.

Be careful not to use a coolant with abrasives (silicates, etc.)

LIQPERF-COOL-02_is
dynotest_combined4-600x379.jpg
Everyone needs to be looking at Evans waterless coolant it has many advantages it doesn't boil away it's non corrosive it has much higher boiling point it doesn't have air pockets ,a lot of racers use it and trucks also they get better mileage because there fans kick on less causing engine drag
 
I don't mean to hijack this thread, but please let me "borrow" it for a moment, as I need an education and think i'm learning something here with this discussion. I was considering running Redline's Supercool Performance Coolant which contains Water Wetter. A friend with a bike says he runs it 100% no antifreeze because of Where we live (California). He is recommending I should do the same on both of our Spyders.
51775055_c0a0_4ca9_8496_0a96b1bd7409_Super_Cool_with_WaterWetter_1_2Gal.jpg
If I am understanding the conversation correctly. I should not use this mixture without an anti-freeze (as my friend suggested) because anti-freeze has lubricant and anti-corrosion additives in it. If I do use the product this summer, should I go with a 70% (SuperCool) 30% (Anti-freeze) mixture?

:bowdown::bowdown::bowdown:Thanks for the anticipated responses:bowdown::bowdown::bowdown:
 
Tony, that stuff is already mixed. You can run it as is right out of the jug.

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I don't mean to hijack this thread, but please let me "borrow" it for a moment, as I need an education and think i'm learning something here with this discussion. I was considering running Redline's Supercool Performance Coolant which contains Water Wetter. A friend with a bike says he runs it 100% no antifreeze because of Where we live (California). He is recommending I should do the same on both of our Spyders.
View attachment 81816
If I am understanding the conversation correctly. I should not use this mixture without an anti-freeze (as my friend suggested) because anti-freeze has lubricant and anti-corrosion additives in it. If I do use the product this summer, should I go with a 70% (SuperCool) 30% (Anti-freeze) mixture?

:bowdown::bowdown::bowdown:Thanks for the anticipated responses:bowdown::bowdown::bowdown:

I cannot verify their numbers, but this brand (Red Line SuperCool) was one of the hotter running mixtures on the LP chart. You would think Red Line would be screaming if those numbers were bogus.
 
Thanks for the info, Drew!!!

Ron, I see your chart where Redline Supercool was much hotter than the Liquid Performance stuff you were recommending. I think i'll give up the convenience of being aboe to get the Supercool at my local CycleGear and try the Liquid performance you recommend. Are you stocking & selling the Liquid Performance? If so, how much?
 
Thanks for the info, Drew!!!

Ron, I see your chart where Redline Supercool was much hotter than the Liquid Performance stuff you were recommending. I think i'll give up the convenience of being aboe to get the Supercool at my local CycleGear and try the Liquid performance you recommend. Are you stocking & selling the Liquid Performance? If so, how much?

No, I'm not selling it so no pony in the race here. The least expensive I could find is here. They aren't giving it away anywhere...
[h=4]LIQUID PERFORMANCE STREET BIKECOOLANT 64 OZ[/h]
 
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Isn't anyone going to look at or comment on the waterless coolant it has a bunch of pluses over and regular types

I wasn't going to comment because it's been awhile since I looked into that product. It has some pluses but there were also some negatives when I did research it. Maybe they've got them ironed out. But at the time it didn't seem appealing to me overall.
 
My concern would be with boil-over. Just because your temp gauge says 215 (I know it doesn't because it's just blocks, but humor me), doesn't mean that a 220 coolant isn't boiling. What you aren't factoring in is the temperature of the coolant touching the cylinder wall. If you only have a 5 degree buffer you are probably getting a boil at the coolant to metal surface in some areas.

Right now I'm running a 70% water, 30% coolant with Water Wetter. But I'm going to try something new this year.

I can't recommend this personally, but I'm certainly going to try it. If my research is good, it will give me not only a cooler running engine, it will also protect better against freeze and boil over compared to my current concoction.

Be careful not to use a coolant with abrasives (silicates, etc.)

LIQPERF-COOL-02_is
dynotest_combined4-600x379.jpg

Thats an interesting looking product and I saw it is sold a number of places but could not find much detailed discussion, specs, directions, etc.
Can it be mixed with the existing coolant in the Rotax? Anyone have any links to more info or reviews ....?
 
Thats an interesting looking product and I saw it is sold a number of places but could not find much detailed discussion, specs, directions, etc.
Can it be mixed with the existing coolant in the Rotax? Anyone have any links to more info or reviews ....?

Rule of thumb, which I'm sure you're familiar with, is to flush the old out completely before putting in a different kind of coolant. Some will mix, others won't. I have ordered this product and it may have more info on the container. If not, I will call LP and see if I can get some answers.

If it is as good as they claim, it will be a big improvement for many.
 
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