2018 Ram Promaster Cargo Van Coolant: Specs & Service

The 2018 Ram Promaster Cargo Van uses a 3.6-liter V6 running on regular unleaded fuel, and its cooling system helps manage heat during daily driving, cargo work and extended operation. At Larry H. Miller Dodge Ram Peoria in Peoria, AZ, a coolant service checks more than fluid level. The visit includes draining and refilling the coolant with the type and concentration the manufacturer specifies, pressure testing the system for leaks, and inspecting key components. Booking a cooling system service is a practical step when the temperature gauge runs higher than usual, a sweet smell or puddle appears, or the coolant looks rusty, cloudy or low in the reservoir. The inspection helps distinguish routine coolant service from a leak requiring repair.

What a coolant service on a 2018 Ram Promaster Cargo Van involves

Coolant service begins with draining the existing coolant from the system. The system is then refilled with the coolant type and concentration the manufacturer specifies for the 2018 Ram Promaster Cargo Van. Using the correct formulation matters because coolant products are not interchangeable, and the fluid must provide the intended protection for the system.

After the refill, the cooling system is pressure tested for leaks. This step can help identify a condition that a simple level check would miss. A technician also inspects the hoses, cap, radiator and the water pump area for signs that may affect cooling performance or allow coolant to escape.

The service is designed to establish the coolant's condition and the system's integrity in the same visit. That distinction matters when a low reservoir could reflect depleted fluid, a leak or both. If your van shows cooling-system warning signs, schedule service at Larry H. Miller Dodge Ram Peoria.

Why coolant condition matters on a 2018 Ram Promaster Cargo Van

Coolant does more than transfer heat away from the 3.6-liter V6. Its additive package helps protect aluminum and gasket surfaces inside the cooling system from corrosion and deterioration. Those additives deplete on their own timetable, even when the fluid still looks like coolant and continues to circulate through the system.

That is why coolant condition should be judged by the manufacturer's maintenance schedule and by testing at a service visit, not by appearance alone. Rusty, cloudy or low coolant can be a visible warning, but clear-looking coolant can still have reduced protective additives. A pressure test adds another layer of information by checking for leaks that can lower the level or introduce air into the system.

For a cargo van that may spend long periods working, maintaining the cooling system supports consistent temperature control. A higher-than-usual temperature gauge, sweet smell or puddle under the front of the vehicle deserves attention. Testing can separate service that is due from a leak that needs repair.

Cooling system service at Larry H. Miller Dodge Ram Peoria

At Larry H. Miller Dodge Ram Peoria, the coolant service for a 2018 Ram Promaster Cargo Van follows a clear diagnostic sequence: drain and refill the coolant, pressure test the system, then inspect the hoses, cap, radiator and water pump area. The work addresses both fluid condition and the possibility of a leak, giving the visit a practical purpose beyond adding fluid to the reservoir.

The service is also an opportunity to discuss what the temperature gauge, coolant appearance and reservoir level may be indicating. Additives can lose their protective value while coolant continues to circulate, so a test and inspection provide better direction than appearance alone. If the level keeps falling, the pressure test helps determine whether the system needs repair rather than another top-off.

To arrange cooling system service in Peoria, use the schedule service link or call (623) 400-7471. Larry H. Miller Dodge Ram Peoria is located at 8665 West Bell Road, Peoria, AZ 85382.