Is it OK to Top Off Stock Ducati Coolant Reservoir With 'Engine Ice'? - Ducati.ms - The Ultimate Ducati Forum
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post #1 of 26 (permalink) Old Jul 18th, 2019, 8:29 pm Thread Starter
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Is it OK to Top Off Stock Ducati Coolant Reservoir With 'Engine Ice'?

2018 959 Corse w/3K miles & 2016 Monster 1200R w/6K miles.

Coolant reservoir is low on both bikes and all I have on hand is a bottle of 'Engine Ice' coolant.

Is it OK to top off the stock Ducati coolant with Engine Ice coolant?

Thanks
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post #2 of 26 (permalink) Old Jul 18th, 2019, 8:39 pm
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Depends on the amount of coolant necessary to top it off. I am running Purple Ice in two of my 748s, myself. It mixes to a ratio of 1oz per quart of 50/50 mixture, or 2oz. per quart of pure water. I suppose it is okay to go a little over that, since my manuals recommend 60/40 (water/coolant). I wouldn't go running a full bottle in there, though (but I am a stickler for mix ratios, and things like that). If you are down more than a few fl. oz., I would add the proper ratio of Ice to the mixture, then top it off (to the "max" line) with deionized water, when you can get around to buying a jug.
The Ice will add lubricity, and the extra water will assist in cooling. Just be sure to get that ratio as close to OEM recomendations as possible if you live in a colder climate area. More water means better cooling, but also decreases the anti-freeze properties. Ice will add the needed lubricity for those seals and water pump.

The stuff seems to work marginally, however, I suppose it is more a placebo, than anything. It still runs hot because......... well, it's a Ducati. 😉

Last edited by Desimoto; Jul 18th, 2019 at 8:57 pm.
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post #3 of 26 (permalink) Old Jul 18th, 2019, 9:21 pm Thread Starter
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OK, I give up.

What's the trick to getting coolant into the reservoir?

Took the side fairing off, got the reservoir cap off.

Now what? The front fairing is clearly blocking access to the fill hole.

Thanks
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post #4 of 26 (permalink) Old Jul 18th, 2019, 9:39 pm
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According to Engine Ice:

"We recommend you never mix ANY TYPE of coolant and antifreeze products. One reason is that propylene glycol and ethylene glycol do not mix well together. Another reason is that just because the base fluid may be similar, other additives and ingredients may not be. Just as you would not mix oils, and for the same reasons, you should not mix coolants and types of antifreeze."

https://engineice.com/faqs/
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post #5 of 26 (permalink) Old Jul 18th, 2019, 10:00 pm
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Quote:
Originally Posted by Strega View Post
According to Engine Ice:

"We recommend you never mix ANY TYPE of coolant and antifreeze products. One reason is that propylene glycol and ethylene glycol do not mix well together. Another reason is that just because the base fluid may be similar, other additives and ingredients may not be. Just as you would not mix oils, and for the same reasons, you should not mix coolants and types of antifreeze."

https://engineice.com/faqs/

Weird. Surly Engine Ice isn't for water/race applications, only. Just a guess, but I would say that this is just a disclaimer, thought up not by chemists, but lawyers. For example, if you mix Ford Powerstroke or GL5 coolant with standard glycol coolant, it can sludge up and cause system failures.

Royal Purple clearly states how much to mix with straight water, or water/coolant combination.
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post #6 of 26 (permalink) Old Jul 18th, 2019, 11:24 pm
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No it is not ok.


Never ever mix one brand of coolant with another no matter what it says on the label.


I'm in a cooling system related field and the biggest single issue I see is caused by mixed coolants.


Just a cup full of non compatible ones will turn you coolant acidic within a few weeks with the resultant consequences over time.

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post #7 of 26 (permalink) Old Jul 18th, 2019, 11:42 pm
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Originally Posted by davy.j View Post
No it is not ok.


Never ever mix one brand of coolant with another no matter what it says on the label.


I'm in a cooling system related field and the biggest single issue I see is caused by mixed coolants.


Just a cup full of non compatible ones will turn you coolant acidic within a few weeks with the resultant consequences over time.
Definitely on mixing coolant types, but what about additives? If these were never meant to be mixed with coolant, then why do they have mixing instructions for such? I can see race applications where one would mix with pure water, but Purple Ice, for one, specifically states how much to use with a 50/50 coolant mixture.
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post #8 of 26 (permalink) Old Jul 19th, 2019, 12:16 am Thread Starter
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If I should not top of the bike with Engine Ice, what should I use in lieu of genuine Ducati coolant?

Let's say, that my local Ducati Dealer stocks Motorex coolant (or any other brand other than that which came in the bike), could I trust their judgement and just use their off the shelf coolant for a top off?

Thanks
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post #9 of 26 (permalink) Old Jul 19th, 2019, 4:05 am
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Why not make it easy on yourself and replace the coolant, can't do it no harm. I with the others and have read never mix different coolants.

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post #10 of 26 (permalink) Old Jul 19th, 2019, 6:06 am
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Quote:
Originally Posted by DrSpencer View Post
If I should not top of the bike with Engine Ice, what should I use in lieu of genuine Ducati coolant?

Let's say, that my local Ducati Dealer stocks Motorex coolant (or any other brand other than that which came in the bike), could I trust their judgement and just use their off the shelf coolant for a top off?

Thanks

No don't trust their judgment on coolants.that's how most of my customers hit cooling system problems.
Most shop mechanics are surprisingly ignorant about mixed coolant issues.



Either top off with distilled water or do a drain/flush/refill with new coolant and keep using the same flavour from then on.

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