Coolant Level?

[Stmar]

B2650, coolant level is on the lower line of the plastic container. Ran tractor until it warmed to two bars, normal running temp, and coolant level stayed the same. About 3/4 of the way up the bottle it has a full line and I have never seen mine that high. Am I okay at this level? If I do have to add coolant is there a specific type, brand, etc. that I should use?

 

[rjcorazza]

Work it hard in the summer and it will dump some coolant in the overflow reservoir. As long as there is some coolant in the reservoir when cold it’s fine, just also ensure the radiator itself is full.
All said, I didn’t care for it either on my L4060, so I added coolant halfway up the reservoir.
As far as coolant type, my kubotas have always come with standard green ethylene glycol based coolant. Mine are all switched out to a longer life (5y) HOAT coolant, but there are many options. If switching to another coolant type I ALWAYS flush with distilled water first. Opinions vary, as do some advertising claims.

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[jryser]

My L3560 is the same way. Dealer said it's perfectly fine; filling it too high will just dump coolant on the ground.


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[Stmar]

Thanks guys, figured it was okay since the tractor was running fine and takes a while to get up to running temp, but wanted to make sure I was not missing something, 2 bars in winter and never had it over 3 bars in 100 degree summer heat.

 

[BruceP]

B2650, coolant level is on the lower line of the plastic container. Ran tractor until it warmed to two bars, normal running temp, and coolant level stayed the same. About 3/4 of the way up the bottle it has a full line and I have never seen mine that high. Am I okay at this level? If I do have to add coolant is there a specific type, brand, etc. that I should use?

As long as the level never goes below the low level when engine is stone-cold, the radiator will not 'suck air' from the reservoir and all is well.

If you do need to add antifreeze it is best to NEVER mix brands of antifreeze. Some brands use OAT (Organic Acid Technology) or HOAT (Hybred Organic Acid Technology) and the chemistry does not mix well with other antifreeze.

Mixing the wrong antifreeze chemistries causes GELLING which pluggs up the small passageways within the engine/radiator leading to overheating.

Hence - If you have not flushed the cooling system in the last 5 years or so.... consider doing so. You may use a garden hose to do the initial flushing... but the final two flushes should be with DISTILLED WATER. It goes without saying that antifreeze should ONLY be mixed with DISTILLED WATER.

 

[Stmar]

I only have 70 hours on the tractor so it will be a while before I flush. Coolant is green and original so I assume it is standard coolant like RJ said.