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#4711960 - 03/30/18 11:03 PM Dexcool in a Yamaha Rhino?
BlakeB Offline


Registered: 09/20/17
Posts: 54
Loc: Southeast
I'm getting ready to replace the failed stator in our 2011 Yamaha Rhino 700. You must drain the coolant and engine oil to get the cover off to access the stator. The Rhino currently has a 50/50 green all makes/models universal coolant in it. I have had no issues with the green antifreeze, but...

I have two gallons of 50/50 mixed (full strength and later mixed with equal amounts of distilled water)Valvoline Zerex Dexcool already bought that I have leftover from a past project. Is there any reason why I can't use the Dexcool in the Yamaha?


Edited by BlakeB (03/30/18 11:16 PM)

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#4711982 - 03/31/18 12:12 AM Re: Dexcool in a Yamaha Rhino? [Re: BlakeB]
Reddy45 Offline


Registered: 08/15/08
Posts: 2755
Loc: USA
If you flush the old stuff out, you should be fine to use Dexcool.

I'd probably use something like Zerex G05 or Zerex Asian Formula, but coolant isn't complicated.

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#4712051 - 03/31/18 05:32 AM Re: Dexcool in a Yamaha Rhino? [Re: BlakeB]
cven Offline


Registered: 07/24/08
Posts: 324
Loc: ohio
I would not use Dexcool ... get some Honda coolant from the local car dealership. I think ??? the seals in the Asian water pumps don't play well with other formulas.

Do some reading about it to make sure.

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#4712188 - 03/31/18 09:25 AM Re: Dexcool in a Yamaha Rhino? [Re: BlakeB]
Chris142 Offline


Registered: 06/05/03
Posts: 16534
Loc: Deplorable in apple valley, ca
I would be worried about dexcool damaging plastic parts.
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#4712219 - 03/31/18 10:27 AM Re: Dexcool in a Yamaha Rhino? [Re: BlakeB]
italian68 Offline


Registered: 01/27/12
Posts: 49
Loc: NJ
dexcool might possibly be the worst coolant currently produced
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#4712900 - 04/01/18 05:10 AM Re: Dexcool in a Yamaha Rhino? [Re: italian68]
SteveSRT8 Online   content


Registered: 10/10/08
Posts: 18864
Loc: Sunny Florida
Originally Posted By: italian68
dexcool might possibly be the worst coolant currently produced


Yep, so bad with both Ford and GM using it in all their cars.

really bad...
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#4712941 - 04/01/18 07:13 AM Re: Dexcool in a Yamaha Rhino? [Re: Chris142]
BlakeB Offline


Registered: 09/20/17
Posts: 54
Loc: Southeast
Originally Posted By: Chris142
I would be worried about dexcool damaging plastic parts.

Based on what?

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#4712950 - 04/01/18 07:20 AM Re: Dexcool in a Yamaha Rhino? [Re: SteveSRT8]
BlakeB Offline


Registered: 09/20/17
Posts: 54
Loc: Southeast
Originally Posted By: SteveSRT8
Originally Posted By: italian68
dexcool might possibly be the worst coolant currently produced


Yep, so bad with both Ford and GM using it in all their cars.

really bad...

Itís so bad that our 05 Trailblazer is still on its original water pump after 13 years. The coolant passage was super shiny when I replaced the thermostat, so obviously itís really acidic and stuff. If Iíd ran the factory fill much longer than the 10 years it was in there it surely would have turned to goop?

In all seriousness I donít think dexcool is that bad. Iíve seen a few older GM cars online that allegedly had some issues when dexcool was mixed with other types of coolant, but who knows. If there was a problem, I donít think it was widespread. Obviously Iím not an antifreeze/coolant expert.

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#4712962 - 04/01/18 07:27 AM Re: Dexcool in a Yamaha Rhino? [Re: Reddy45]
BlakeB Offline


Registered: 09/20/17
Posts: 54
Loc: Southeast
Originally Posted By: Reddy45
If you flush the old stuff out, you should be fine to use Dexcool.

I'd probably use something like Zerex G05 or Zerex Asian Formula, but coolant isn't complicated.

I might go this route, Iíve been thinking about using the Zerex Asian Formula in my Toyota in the place of the Toyota pink antifreeze anyways. I donít really think the Yamaha would have any issues with it or the Dexcool either one. Yamaha doesnít really specify any specific antifreeze, just a 50/50 mix and to change it every 2 years.

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#4712964 - 04/01/18 07:30 AM Re: Dexcool in a Yamaha Rhino? [Re: SteveSRT8]
JetStar Offline


Registered: 10/02/08
Posts: 1538
Loc: Flatlands of Indiana
Use what your OM recommends, which I believe is silcate free.
I'd probably go with something like this;
https://www.valvoline.com/our-products/antifreeze-products/zerex-asian-vehicle-antifreeze-coolant
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#4712970 - 04/01/18 07:33 AM Re: Dexcool in a Yamaha Rhino? [Re: BlakeB]
JetStar Offline


Registered: 10/02/08
Posts: 1538
Loc: Flatlands of Indiana
Originally Posted By: BlakeB
Originally Posted By: Chris142
I would be worried about dexcool damaging plastic parts.

Based on what?


One of the anti-corrosion components presented as sodium or Potassium 2-ethylhexanoate and ethylhexanoic acid is incompatible with nylon 6,6 and silicone rubber, and is a known plasticizer.

I'm not a chemist, but this is what's out there in the world.
_________________________
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2017 Wide Glide
2016 Suzuki DR650
2015 Road Glide
2007 Yamaha FZ1
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#4713021 - 04/01/18 08:10 AM Re: Dexcool in a Yamaha Rhino? [Re: JetStar]
BlakeB Offline


Registered: 09/20/17
Posts: 54
Loc: Southeast
Originally Posted By: JetStar
Originally Posted By: BlakeB
Originally Posted By: Chris142
I would be worried about dexcool damaging plastic parts.

Based on what?


One of the anti-corrosion components presented as sodium or Potassium 2-ethylhexanoate and ethylhexanoic acid is incompatible with nylon 6,6 and silicone rubber, and is a known plasticizer.

I'm not a chemist, but this is what's out there in the world.

Interesting, I had no idea. I would think that the plastics used in automotive applications would or should be compatible with most antifreeze formulations, otherwise youíd have a lot of people having a lot of trouble Iíd think. Thanks for the info!

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#4713254 - 04/01/18 01:04 PM Re: Dexcool in a Yamaha Rhino? [Re: BlakeB]
italian68 Offline


Registered: 01/27/12
Posts: 49
Loc: NJ
if not replaced at regular intervals dexcool will corrode/deteriorate the cooling system circuit.
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#4713309 - 04/01/18 02:58 PM Re: Dexcool in a Yamaha Rhino? [Re: italian68]
Garak Offline


Registered: 12/05/09
Posts: 24064
Loc: Regina, Saskatchewan, Canada
Originally Posted By: italian68
if not replaced at regular intervals dexcool will corrode/deteriorate the cooling system circuit.

To what coolant concoction would that not apply?
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#4713324 - 04/01/18 03:18 PM Re: Dexcool in a Yamaha Rhino? [Re: italian68]
SteveSRT8 Online   content


Registered: 10/10/08
Posts: 18864
Loc: Sunny Florida
Originally Posted By: italian68
if not replaced at regular intervals dexcool will corrode/deteriorate the cooling system circuit.


Absolute nonsense. I run GM fleet vans and Silverados and we run them to component failure on OEM coolant. This is usually well over 200k miles.

Never a problem with Dexcool. None whatsoever.

Your info is based on a problem GM had with GASKETS, not coolant...
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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