MOTOREX COOLANT M5.0 or M3.0 which is best for HUSABERG FE450 E 2008

wiesiu46 · Nov 21, 2017

I've got HUSABERG FE450 2008 and I don't know which coolant is best to use.

I've checked owners manual but didn't find answer

please help me ;]

I found on ebay: MOTOREX COOLANT M5.0 or M3.0 and I don't know which buy

thanks for help

husabutt · Nov 21, 2017

5.0

Recommended for use in KTMs; 2014 and prior Street Models, 2015 and prior Off-Road Models

DTeuscher · Jan 16, 2024

I have a 2010 FX 450 that was new to me a few months back. I went in to my local KTM dealer and they only had 3.0 on the shelf.
The manual doesn't say 3.0 vs 5.0, so I put the 3.0 in. It just says "Motorex coolant". I have since read about the 5.0, so I have that on order.
What do the silicates in the coolant actually do?

My question is if the 3.0 is going to do any damage in the short term? I have only ridden it around the neighborhood when the roads were dry. It snows a lot where I live.
The 5.0 will be in there before I do any real riding in the spring.

BERGOROADRACER · Jan 16, 2024

Non of the them is good for husa works on a warm country . Fan will be open all the time and if you have not fan temp will be over 110 c .

Hardrider · Jan 23, 2024

I have been using Evans coolant. Won't boil out. Have never overheated. Coolant in the machine is better than none no matter how hot it is. There is a fan on the machine too. 2007 FE550.

BERGOROADRACER · Jan 23, 2024

I use the same over 20 years with a 2 bar cap and an extra radiator ground wire to avoid electrolysis .Its the best of the best .

Stephengr · 2025-01-20T12:59:52-0800

wiesiu46 said:
I've got HUSABERG FE450 2008 and I don't know which coolant is best to use.

I've checked owners manual but didn't find answer

please help me ;]

I found on ebay: MOTOREX COOLANT M5.0 or M3.0 and I don't know which buy

thanks for help

Hi,

Mixing of coolants is generally a big no no. If you know what is in your bike already, stay with it, if not then completely flush the whole system and refill with one type only.

Motorex 3 (Green) coolant 3.0 is "OAT" ( Organic Acid Technology) coolant without silicates.

For use in engines recommending a silicate free anti-freeze.
Ready-to-use radiator protection based on ethylene glycol.
Excellent protection against frost, corrosion, lime scale deposits and overheating for all modern engines.
Already mixed with water.
Free of silicates, nitrates, amines and phosphates (OAT technology).
Compatibile with all standard commercial seals and radiator hoses.
Cold protection down to -33°C.
Replaces Coolant G30

It is important to know that OAT does not protect copper and brass system components.

Motorex 5 (Blue)
FEATURES

Ready-to-use coolant is ready-mixed anti-freeze free of nitrites, phosphates and amines; based on ethylene glycol
Meets the strict requirements of various manufacturers of modern, high-performance engines
Provides excellent all-year protection against corrosion for all metals and alloys in cooling systems of internal combustion engines
Compatible with standard commercial seals, hoses, elastomers and plastics
High chemical stability
Protects against overheating
A maximum service life of three years
Can be stored in air-tight containers for up to five years
Cold protection down to -33°C

All in all, both work, personal choice. I use Motorex 5 in my 2012 FE390 and have done 5000klms round trip across the Simpson Desert in 3 weeks, no issue.

Motorex 5 is slightly cheaper $22 vs $25 - MX Store

Trust this helps.

MOTOREX COOLANT M5.0 or M3.0 which is best for HUSABERG FE450 E 2008

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