2019 Ram ProMaster – Fluid Type Specs

Quick Reference

Engine Oil

For the 2019 Ram ProMaster, equipped with the 3.6L Pentastar V6 engine, the factory-specified engine oil is 0W-20 meeting API SN Plus or SP standards and specifically conforming to FCA Material Standard MS-6395. The oil capacity is approximately 6.0 quarts with a filter change.

It is crucial to use only oil that meets the MS-6395 specification. This ensures proper lubrication, protection against low-speed pre-ignition (LSPI), and optimal engine performance and longevity. Using oil that does not meet this specification can lead to accelerated wear, increased oil consumption, and potential engine damage, and may void your powertrain warranty. Always check your owner's manual for the most up-to-date information on oil specifications and capacity, as minor revisions can occur.

The oil change interval for normal service is typically 10,000 miles or 12 months, whichever comes first. However, for vehicles operating under severe conditions (e.g., frequent towing, extensive idling, dusty environments, extreme temperatures), more frequent oil changes, often around 5,000 miles or 6 months, are recommended. Always refer to the maintenance schedule in your owner's manual based on your specific driving conditions.

Engine Coolant

The 2019 Ram ProMaster uses a specific Organic Additive Technology (OAT) coolant conforming to FCA Material Standard MS-90032, typically identified by its purple, pink, or violet color. The cooling system capacity is approximately 9.0 quarts. This Mopar OAT coolant is designed for extended service life, offering corrosion protection for various engine components, including aluminum.

Never mix different types of coolants, especially OAT with HOAT (Hybrid Organic Additive Technology) or traditional IAT (Inorganic Acid Technology) coolants. Mixing coolants can lead to chemical reactions, gel formation, reduced corrosion protection, and eventual damage to the cooling system, including the radiator, water pump, and heater core. Always perform a complete flush and refill if you are unsure of the coolant type or if you are switching coolant types (which is generally not recommended unless absolutely necessary and performed by a professional).

Check the coolant level periodically and top off with the specified Mopar OAT coolant or distilled water if needed. The typical service interval for a coolant flush and fill is around 10 years or 100,000 miles, but always verify this in your owner's manual.

Transmission Fluid

The 2019 Ram ProMaster, depending on its specific transmission, typically utilizes Mopar ATF+4 automatic transmission fluid. This is a highly specialized fluid developed by FCA for optimal performance and longevity of their transmissions. The capacity for a drain and fill can vary from 6.0 to 9.0 quarts, but a complete overhaul may require more. Always consult your owner's manual for the precise capacity based on your transmission and service procedure.

Under no circumstances should universal or multi-vehicle ATFs be used unless they explicitly state compliance with Mopar ATF+4 and meet the FCA material specification. Using incorrect fluid can lead to harsh shifts, transmission slippage, overheating, and severe internal damage, which can be very costly to repair. Mopar ATF+4 is designed to maintain consistent viscosity across a wide temperature range and provide specific friction characteristics required for FCA transmissions.

Transmission fluid change intervals can vary significantly based on driving conditions. For normal use, intervals might be in the range of 60,000 to 100,000 miles. However, for severe service (e.g., heavy towing, frequent stop-and-go traffic, commercial use), much shorter intervals, such as every 30,000 to 50,000 miles, are strongly recommended. Regularly check the fluid level and condition, and adhere to the maintenance schedule in your owner's manual.

Brake Fluid

For the 2019 Ram ProMaster, the specified brake fluid is DOT 3. The system capacity is approximately 1.0 quart for a flush. DOT 3 is a glycol-ether based fluid designed to meet specific boiling point requirements.

It is critical to use only DOT 3 brake fluid. While DOT 4 fluids are often compatible and may offer a higher wet boiling point, it