The New Holland PowerStar 90 tractor cooling system capacity is 15 gal | 56.8 L and coolant type is extended-life OAT coolant.
New Holland PowerStar 90 Coolant Capacity Details
Cooling system capacity
15 gal | 56.8 L
Coolant type
Extended-life OAT coolant
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 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.
New Holland PowerStar 90 Extra Coolant Notes
Engine horsepower
86 hp | 64.1 kW
Engine displacement
3.4 L | 206.7 cu in
Capacity note
For the New Holland PowerStar 90, the listed cooling system capacity is 15 gal | 56.8 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 New Holland PowerStar 90 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.
New Holland PowerStar 90 Coolant FAQs
How much coolant does a New Holland PowerStar 90 take?
The New Holland PowerStar 90 takes 15 gal | 56.8 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 gal | 56.8 L a lot of coolant for a New Holland PowerStar 90?
Yes. For this tractor category, 15 gal | 56.8 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 New Holland PowerStar 90?
Do not underestimate this refill. A 15 gal | 56.8 L system needs about 15 one-gallon containers if you are using premixed coolant. If using concentrate at a 50/50 mix, plan on about 7.5 gal of concentrate and 7.5 gal of distilled water. In metric terms, that is roughly 12 x 5 L containers for a full premix refill.
Can I mix coolant types in a New Holland PowerStar 90?
Because the listed coolant is extended-life OAT coolant, the clean move is to stay with the same approved chemistry. Do not casually mix it with old green conventional coolant; if the old coolant type is unknown, flush first or confirm what is already in the system. 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 New Holland PowerStar 90 need?
With the listed 50/50 antifreeze and water mix, a full 15 gal | 56.8 L refill works out to about 7.5 gal of antifreeze concentrate and 7.5 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 New Holland PowerStar 90?
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 newholland.com website before draining, flushing or refilling the cooling system.
