The listed coolant capacity for the John Deere 30A is 3 gal (11.4 L). Keep a little extra coolant available for final top-up after air leaves the system.
Coolant capacity3 gal (11.4 L)Cooling system refill amount
John Deere 30A Coolant Capacity Specs
Coolant capacity
3 gal (11.4 L)
Engine horsepower
25 hp
Engine displacement
76.2 cu in (1.25 L)
John Deere 30A Coolant Capacity Guide
Coolant capacity guide
This model
3 gal
Class low
0.8 gal
Class typical
2.5 gal
Class high
5 gal
Compared with a broad older small tractor guide, not the full tractor dataset.
John Deere 30A Coolant Service Notes
Coolant capacity note
The main coolant number for the John Deere 30A is 3 gal (11.4 L). Use it as the cooling-system refill amount, then check the radiator or overflow level after the engine has warmed up and cooled down
Coolant service note
The John Deere 30A should be filled by capacity first, then verified by the actual level marks after the engine cools
Refill check
After a drain and refill on the John Deere 30A, the cooling system can burp air. Recheck the level after the first warm-up and cool-down cycle
Engine context
The engine context for the John Deere 30A is engine horsepower 25 hp and engine displacement 76.2 cu in (1.25 L). Use this for comparison only; the refill amount is the coolant capacity above
John Deere 30A Coolant Capacity FAQ
What is the full coolant refill capacity for the John Deere 30A?
Plan around 3 gal (11.4 L) when servicing coolant on the John Deere 30A. Recheck the system when cool because air pockets can lower the level
Should the John Deere 30A coolant be checked hot or cold?
Yes. Use the 3 gal (11.4 L) figure as the refill guide, but always recheck level after warm-up and cool-down because trapped air can move through the system
What signs mean the John Deere 30A coolant should be flushed?
If the John Deere 30A coolant is only slightly low and otherwise clean, topping up with compatible coolant can be enough. If condition is poor, drain and refill instead
Official information note
Mistakes do happen. Tractor coolant capacity and coolant type can change by year, market, engine, radiator setup and service procedure. Check the operator manual, service manual and official deere.com website before draining, flushing or refilling the cooling system.
