The Case IH DX45 tractor cooling system capacity is 15.9 gal | 60 L, coolant type is ethylene glycol-based coolant, and coolant change interval is every 6,000 hours or 6 years.
Case IH DX45 Coolant Capacity Details
Cooling system capacity
15.9 gal | 60 L
Coolant type
Ethylene glycol-based coolant
Coolant change interval
Every 6,000 hours or 6 years
Coolant mixture ratio
50/50 antifreeze and water
Radiator cap pressure
7 psi | 48 kPa
Coolant Capacity Comparison Chart
Coolant Capacity Comparison
This model
15.9 gal
Average
5.5 gal
Low
3 gal
High
9 gal
Benchmarks use practical low, average and high coolant-capacity ranges for the utility tractor category. Use the exact tractor manual before buying coolant.
Case IH DX45 Extra Coolant Notes
Engine horsepower
45 hp | 33.6 kW
Engine displacement
2.2 L | 134.1 cu in
Capacity note
For the Case IH DX45, the listed cooling system capacity is 15.9 gal | 60 L. Buy slightly more coolant than the exact capacity so you have enough for topping off after air burps out.
Mixture note
50/50 antifreeze and water.
Radiator cap note
The radiator cap pressure listed for the Case IH DX45 is 7 psi | 48 kPa. Do not replace it with a random cap unless the pressure rating matches.
Refill note
Refill slowly, run the tractor until warm with the heater circuit open if fitted, let it cool, then recheck the coolant level. Never remove a hot radiator cap under pressure.
Case IH DX45 Coolant FAQs
How much coolant does a Case IH DX45 take?
The Case IH DX45 takes 15.9 gal | 60 L of coolant. That is well above the normal utility tractor benchmark shown here, so treat it as a full cooling-system service job, not a quick top-up.
Is 15.9 gal | 60 L a lot of coolant for a Case IH DX45?
Yes. For this tractor category, 15.9 gal | 60 L is well above normal. This is the sort of refill where you want all coolant on hand before draining, because stopping halfway through the job is annoying and messy.
How many coolant jugs do I need for a Case IH DX45?
Do not underestimate this refill. A 15.9 gal | 60 L system needs about 16 one-gallon containers if you are using premixed coolant. If using concentrate at a 50/50 mix, plan on about 8 gal of concentrate and 8 gal of distilled water. In metric terms, that is roughly 12 x 5 L containers for a full premix refill.
What coolant should I use in a Case IH DX45?
The listed coolant is ethylene glycol-based coolant. Ethylene glycol tells you the base coolant, but the additive package still matters on diesel engines, so match the manual or an approved equivalent. The listed mix is 50/50 antifreeze and water, so do not run straight water except as a short emergency move.
How much concentrate and water does a Case IH DX45 need?
With the listed 50/50 antifreeze and water mix, a full 15.9 gal | 60 L refill works out to about 8 gal of antifreeze concentrate and 8 gal of distilled water. If using premix, do not add extra water unless the product label says to.
Can I use a different radiator cap on a Case IH DX45?
The listed cap pressure is 7 psi | 48 kPa. That is a lower-pressure cap, so do not upgrade it to a higher-pressure cap just because it sounds stronger. Too much cap pressure can stress hoses, radiator seams and older seals.
Official information note
Mistakes do happen. Coolant specs can change by year, engine, market, radiator option and coolant chemistry. Check the operator manual, parts book and official caseih.com website before draining, flushing or refilling the cooling system.
