[Krzysztof]

This in-depth analysis of Triumph HD4X HOAT coolant will answer all your questions. The manufacturer of HD4X concentrate is Finol Oils (below also link to data sheet). Enjoy.

Three Triumph HD4X Coolant Alternatives — Analysis / Detail

The three best Triumph HD4X Hybrid OAT coolant alternatives — comparing specs and getting it right. Checking two alternatives in detail.

maintenanceschedule.net

https://www.finol.ie/wp-content/uploads/2020/08/Finol-Premium-HD4X-Concentrate.pdf

 

[Krzysztof]

In addition to using phosphate free coolant you also have to make sure that it not contain any silicates. It's really best to use motorcycle specific coolant.

Chico

This is completely not true. Triumph OEM coolant HD4X HOAT contains both silicates and borates which are well known for their ability to provide excellent protection in heavy duty applications particularly where there is potential for cavitation erosion-corrosion to occur.

 

[Chico]

Krysztof, after reading your strong statement I felt compelled to do some further research. Every article I read states that car coolant contains silicates among other additives. For motorcycle engines however that is not the case. The following paragraph synthesizes all of what I read.

"What does silicate do in coolant?
Silicate gel buildup greatly reduces heat transfer from the engine castings to the coolant. When the gel coats the temperature sender, engine overheating can take place without notice. Silicate gel also carriers abrasive particles to the water pump, where it wears away pump seals causing leakage and failure."

Chico

 

[Chico]

Krysztof, after reading the list of vehicles that finol recommends, all the brand names are car companies, not one motorcycle name listed. It looks like your source of coolant isn't meant for motorbikes.

Chico

 

[Spud]

The word PEDANTIC comes to mind after reading all this bu// sh#+, there's probably a guy with a heap of demineralised water and a load of green dye and red dye somewhere laughing his fu@#ing head off and making sh:t loads of money out of it, it's not going to happen in our lifetime guys just enjoy the ride

 

[Chico]

Spud, you're taking all the fun out of this conversation!

Chico

 

[Halo_2]

Krysztof, after reading the list of vehicles that finol recommends, all the brand names are car companies, not one motorcycle name listed. It looks like your source of coolant isn't meant for motorbikes.

Chico

Coolant for engine is the same for a car vs bike, there is nothing special about a bike.

As long as you get the specs correct to manufacture then your good to go.

**** even engine oil with the correct properties and don’t contain friction modifiers will be fine.

Penrite sells car oils that suit motorcycles as well.

 

[Redsars]

I do not know who wrote that analysis, but there is a major flaw which somewhat negates to recommendations. I contacted Ken Cummins at Finol and he confirmed that Finol are not the supplier of Triumph's HD4X coolant. He suspects it was Solventis who supply many OEMs with white label coolants and oils. So I am still not sure whether to top up with a P-HOAT or a S-HOAT coolant

 

[Chico]

"Cooling systems in motorcycles contain more aluminium than the ones in passenger cars. Some even use magnesium. These metals are lightweight yet strong when compared to iron, but on the other hand, they are susceptible to corrosion. Hence, choosing an anti-corrosive coolant is extremely important.

If corrosion occurs in cooling systems of bikes, it would hinder heat transfer, thus increasing the engine temperature tremendously. Even worse, it can clog coolant passages and prevent the flow of coolant, which will also result in overheating.

Hence, to provide the best quality protection, use a special motorcycle coolant or some other coolant that contains highly purified water. Also, make sure the coolant you choose contains additives that are specifically designed for magnesium, aluminium and other metals that are mostly present in motorcycle cooling systems."

Direct quote.

Chico

 

[BobDown]

I do not know who wrote that analysis, but there is a major flaw which somewhat negates to recommendations. I contacted Ken Cummins at Finol and he confirmed that Finol are not the supplier of Triumph's HD4X coolant. He suspects it was Solventis who supply many OEMs with white label coolants and oils. So I am still not sure whether to top up with a P-HOAT or a S-HOAT coolant

Top it up with water, it won't make a
scrap of difference either way.

Cheers.

 

[Chico]

This discussion seems silly to me. Why not use the recommended type of coolant. It might cost a little more, most mc specific parts do, and err on the side of caution.

Chico

 

[Halo_2]

Called both triumph dealerships and even they use penrite red coolant.....they said cant get triumph red coolant here.

 

[HarriS]

Called both triumph dealerships and even they use penrite red coolant.....they said cant get triumph red coolant here.

By Google Penrite red is G40 coolant and contains silicates. So it is same as the "old" Triumph coolant. Triumph swapped to silicate free so G30 (G12+) should be the current alternative.

 

[Halo_2]

By Google Penrite red is G40 coolant and contains silicates. So it is same as the "old" Triumph coolant. Triumph swapped to silicate free so G30 (G12+) should be the current alternative.

Just what the dealership said they use but we do have Nulon also here so ill use that.

Red Premium Long Life Coolant Premix (RLLTU)

www.nulon.com.au