Regarding coolant/Antifreeze brands

[FJK]

Any alternative Manufacture brand to use? No Tractor supply stores near me but a bunch of Auto parts stores, was going to buy it by mail order until I saw the shipping cost, crazy high. So I'm looking for another option, but not at the price of wrecking the cooling system on my MX5400, I do the road trip if I must.
Thank guys

 

[TheOldHokie]

Any alternative Manufacture brand to use? No Tractor supply stores near me but a bunch of Auto parts stores, was going to buy it by mail order until I saw the shipping cost, crazy high. So I'm looking for another option, but not at the price of wrecking the cooling system on my MX5400, I do the road trip if I must.
Thank guys

Use any decent quality long life coolant. There is ZERO danger of it wrecking the cooling system on your MX5400

Dan

 

[Caden]

I'm not sure what color your coolant is.... I know mine uses the green, but yours being newer, not sure.
To me, the color is more important than brand.

 

[John T]

Oh Boy.... here we go.

pass the popcorn and Mr. Pibb

 

[FJK]

Thanks guys for the come back

 

[Bee-Positive]

As TheOldHokie said use any long life coolant.

Here's Kubota's take, make of it what you will. Universal "green" coolant is not recommended. YMMV
Read the 4th question under FAQ's for local auto store availability.

Kubota Antifreeze & Coolant Type: LLC vs SLLC Guide (2026) | Tractor Parts Central

What antifreeze does a Kubota take? LLC vs SLLC explained, approved brands, mix ratios and capacities for BX, B, L and M series.

tractorpartscentral.com

Pass the popcorn please...

 

[ruger1980]

As TheOldHokie said use any long life coolant.

Here's Kubota's take, make of it what you will. Universal "green" coolant is not recommended. YMMV
Read the 4th question under FAQ's for local auto store availability.

Kubota Antifreeze & Coolant Type: LLC vs SLLC Guide (2026) | Tractor Parts Central

What antifreeze does a Kubota take? LLC vs SLLC explained, approved brands, mix ratios and capacities for BX, B, L and M series.

tractorpartscentral.com

Pass the popcorn please...

That is a statement from Tractor Parts Central do you have anything from Kubota that verifies that? I have never seen anything from Kubota that states anything other than a 50/50 mix of antifreeze. See attached from Kubota's Lubricants maintenance table.

 

[number two]

Get a gallon of conventional green coolant for 10-12 bucks at the parts store.
And a gallon of distilled water for 1.50,mix 50/50.
Drain and refill.
Don't overthink it!
Good Luck!

 

[Runs With Scissors]

I am "less picky" about my coolants than I am of other fluids like oils and such.

I keep a jug of "universal coolant" in the shop, and thats what everything gets.

It's "Wally World" brand I think.....(maybe O'Riellys?????)

That reminds me, I need to check my coolant.......

 

[TheOldHokie]

The Kubota manuals explicitly say to use a long life coolant. That woukd be any of many OAT based formulations.

Use a conventional (IAT) coolant at your own risk.

Dan

 

[GeoHorn]

My Kubota calls for “ethylene glycol” type. To me…that’s Prestone. And COLOR doesn’t mean a DAMM THING!

There IS NO STANDARD COLOR SPECIFICATIONS for anti freeze. Each mfr’r does whatever his kids like and that’s all the “standard” there is. I.E., FORGET COLOR.

Buy an ethylene glycol antifreeze…and dilute it with distilled water …OR buy “pre-mix”.

NEVER use any chemical “flush” … unless you want to risk losing the water pump shortly thereafter.

Flush it with plain water from the garden hose…. then install the new antifreeze per the pkg instructs for a 50% mix.

 

[Trash Panda]

I'm not sure what color your coolant is.... I know mine uses the green, but yours being newer, not sure.
To me, the color is more important than brand.

Color is 100% irrelevant.

Formulation is the only thing that matters.

 

[Caden]

Color is 100% irrelevant.

Formulation is the only thing that matters.

Indeed... Green is IAT, Orange is long life OAT.

Therefore, formulation and color go hand in hand.
The ranibow between the two is where things go off the rails.

 

[TheOldHokie]

Indeed... Green is IAT, Orange is long life OAT.

Therefore, formulation and color go hand in hand.
The ranibow between the two is where things go off the rails.

Colors are meaningless. Kubota antifreeze is dyed green and its not IAT.

Kubota branded long life coolant is a phosphated OAT (POAT) formulation that is silicate, nitride, and borate free. In the US its made in Illinois by CCJ which is a large Japanese manufacturer that supplies factory fills for lots of different OEMs worldwide.

Kubota does not seem to care what specific formulation you use as long as its NOT IAT. If coolant chemistry is greek to you, you dont have a clue what IAT and OAT mean, and/or fears of wrecking your tractor keep you awake at night buy the jugs that say Kubota on the outside. Otherwise theres a rainbow of perfectly fine alternatives.

Dan

 

[Trash Panda]

Indeed... Green is IAT, Orange is long life OAT.

Therefore, formulation and color go hand in hand.
The ranibow between the two is where things go off the rails.

The rainbow extends much further, and all “green” coolant isn’t IAT. Plenty of orange HOAT and red OAT floating around too.

The color is simply the dye that a manufacturer chooses to use, and has nothing to do with the additive package in the coolant.

Choosing a coolant solely by color is one sure fire way to end up with the wrong chemistry in your unit. It’s how so many RAM owners ended up with peanut butter heater cores by inadvertently mixing HOAT and OAT coolants.

Gotta read the label, else you’re just rolling the dice.

 

[John T]

My 2017 still has the same coolant it came from the factory with....

thanks for the corn

 

[Caden]

Gotta read the label

True enough