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Offline K1W1

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Re: Drained coolant!
« Reply #10 on: May 24, 2020, 10:41:51 PM »
*Originally Posted by chico [+]
Haynes says that the coolant capacity is 2.4 L, that's a big difference, more than half a liter. it makes me wonder why such a discrepancy? :084:


According to the two Tiger owners manual I have
The 2011-2014 bikes have a coolant capacity of 2.4 litres.
The 2015 and later bikes have a coolant capacity of 2.69 litres.

Offline AvgBear

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Re: Drained coolant!
« Reply #11 on: May 24, 2020, 10:59:28 PM »
*Originally Posted by Jakm15 [+]
I wonder how necessary it is to change to coolant as regular as Triumph say.
Triumph use HOAT spec. coolant (Hybrid Organic Acid Technology) -- 'net say:
"HOAT is an organic acid that includes silicates as additives. The silicates inhibit corrosion on the alloy parts of the engine.
HOAT coolants have a service life of five years or 150,000 miles, after which they should be flushed out.
This type of coolant is either yellow or orange."
The Ethylene Glycol part of 'permanent' anti-freeze / coolant is quite long-life -- but acids can form, over time, and it's these that can cause corrosion and affect internal parts like head gaskets.
Corrosion damaged head gasket can allow coolant to leak out, into combustion, or into engine oil.
There are a terrible lot of lies going about the world, and the worst of it is that half of them are true.

Offline chico

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Re: Drained coolant!
« Reply #12 on: May 25, 2020, 12:24:20 AM »
The Triumph labeled HOAT coolant is blue. Is it necessary to change every two years? Questionable, I did it because I needed something to do to pass the sequestered time.



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