Mitsubishi 2.8 Diesel Coolant?

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Charging fluid in friend's Parejo 2.8 Diesel. What diesel coolant is recommended? This engine model has some reputation for overheating. It also gets down to -40 in winter here. Thanks.
 
Assuming this is the 4M40, 50% premixed Mitsubishi Super Long Life Coolant (SLLC) will work fine.

Personally, however, I would use John Deere CoolGard-II in that particular application, a 50/50 mix will work perfect.

Whichever you choose to go with, do a thorough citric acid flush and make sure you replace the radiator cap. Depending on year it will be 0.9 bar or 1.1 bar, make sure you get the correct one.
 
After problems with some common rail 4D56 engines, Mitsubishi NZ went to a blue longlife coolant in all models, that would be the best option.
 
It is a 4M40. There is no mitsubishi dealer nearby. I have had good results with Toyota SLLC in gas applications. Would that be suitable for a diesel with its unique cavatation requirements? There is a John Deere dealer here, perhaps that's my best option locally? Is it worth installing a coolant filter? I'm new to diesel cooling systems. Thanks.
 
This is an option

https://www.canadiantire.ca/en/pdp/...anti-freeze-coolant-3-78-l-0293052p.html

"MotoMaster Extended Life Diesel Concentrated Anti-Freeze/Coolant features a low silicate, phosphate and amine free fromula
Performance rated at 6 years or 960,000 km (600,000 miles)
For use in light- and heavy-duty diesel applications where an extended service interval is required
For all on-road trucks, marine and industrial stationary and mobile farm equipment
Meets performance specifications of ASTM D-3306, D6210, JIS K-2234 and TMC RP 329"
 
Originally Posted by Silk
After problems with some common rail 4D56 engines, Mitsubishi NZ went to a blue longlife coolant in all models, that would be the best option.


It that G-48?

Originally Posted by Gannet167
This is an option

https://www.canadiantire.ca/en/pdp/...anti-freeze-coolant-3-78-l-0293052p.html

"MotoMaster Extended Life Diesel Concentrated Anti-Freeze/Coolant features a low silicate, phosphate and amine free fromula
Performance rated at 6 years or 960,000 km (600,000 miles)
For use in light- and heavy-duty diesel applications where an extended service interval is required
For all on-road trucks, marine and industrial stationary and mobile farm equipment
Meets performance specifications of ASTM D-3306, D6210, JIS K-2234 and TMC RP 329"



Problem with diesel coolants it that a lot of them contain 2-EHA, which is what that particular one appears to be.
 
Originally Posted by Falcon_LS
[
It that G-48?
.


Um....I still have one of the original containers, they were imported from Japan, part number MZ341015ex.
 
Originally Posted by Silk
Originally Posted by Falcon_LS
[
It that G-48?
.


Um....I still have one of the original containers, they were imported from Japan, part number MZ341015ex.


I don't think it's the same a G-48 (BMW blue coolant, low silicate-OAT)

I think it's this stuff, a Ph-OAT
http://www.oemantifreeze.com/oem-blue/
 
It is made by Recochem, "OEM" brand. Here is the MSDS from Canadian Tire:
http://canadiantire.wercsmart.com/S...e877ba4c9&HazdocumentKey=&MSDS=3

I believe it is re-branded Recochem "Turbo Power HD Diesel EXL". Both advertise same service interval of 960,000 km, 6 years or 12,000 hrs.
Recochem advertises it as:
Low silicate; Phosphate and Amine free.
"• Provides an in-service life of up to 960,000 km, 12,000 hours or
6 years, or whichever comes first, when used in combination with
HD Diesel EXL Coolant Extender
• Does not require an initial charge of supplemental coolant additives
(SCA)"


https://www.recochem.com/media/uplo...esel_Engines_Catalogue_EN_220216_WEB.pdf

How would I be able to confirm if it uses 2-EHA or not?

Perhaps I should go to Cummins or John Deere and get their stuff?

I would gladly run Toyota SLLC, which does not have 2-EHA and is borate/silicate etc. etc. free. Great stuff. But I don't think it handles the anti-cavitation requirements of a diesel.
 
What about G-05 ?

Quote
Valvoline'sZerex G05 antifreezecoolantisalonglife, fully formulated ethylene glycol-based fluid suitable for passenger cars, light trucks and heavy duty vehicles. The formulation is designed for both gasoline and diesel engines. Its lower-silicate, reduced pH, phosphate free European technology protects all cooling system metals, including aluminum, from corrosion. Zerex G 05 is a nitrite containing coolant designed to protect diesel engine cylinder liners from cavitation. It contains deposit control additives for protection from hard water deposits and scale. The ASTM and other test data shown on this sheet reflect the high performance corrosion inhibitor package.


Link
https://www.consulab.com/files/zerexg05TechBulletin.pdf

I believe G-05 is 2-EHA free
 
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Zerex could work nicely. I didn't know it was appropriate for Diesels. It's good stuff.

I called Ricochem and they confirmed that none of their coolants have 2-EHA.
 
Originally Posted by Gannet167
It is a 4M40. There is no mitsubishi dealer nearby. I have had good results with Toyota SLLC in gas applications. Would that be suitable for a diesel with its unique cavatation requirements? There is a John Deere dealer here, perhaps that's my best option locally? Is it worth installing a coolant filter? I'm new to diesel cooling systems. Thanks.

Hino uses Toyota's SLLC formulation in their trucks. I wouldn't doubt if Isuzu and Mitsubishi Fuso also uses an Asian pHOAT for their diesel engines - Isuzu uses Dexcool for their gas trucks because GM. The heavy duty diesel market are switching over to OAT coolants, with or without nitrite. Ford and GM are using Dexcool in the newest Powerstrokes and Duramaxes.

Valvoline sells Asian pHOAT made by CCI as Zerex Asian Vehicle Formula in pink(red) and blue colors to mix in with OEM fill. The Asian coolants seem to work for their diesel protection needs, they don't call for SCAs like the American OEMs did with old-school green silicated coolant. A coolant filter wouldn't be a bad idea for a diesel, get one without SCA.

/edit - it seems like Hino is using a blue coolant for their conventional cab models built in the US, and the Toyota Pink in Japanese cabovers: https://www.hino.com/assets/pure_hino_coolant_flyer_2016_ol.pdf
 
Last edited:
However, a coolant filter might be a silly idea if you used Toyota SLLC/LLC, Zerex Asian Formula or any pHOAT IMO. The coolant filters were more a heavy duty thing protecting against sediment from cavitation and providing one place to catch silicate dropout as well as keeping a stable SCA level.
 
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