What kind of coolant does a 2017 Dodge Ram 1500 take?

[DanielaDella]

The 2017 Ram 1500 requires an OAT (Organic Acid Technology) coolant that meets either Chrysler specification MS-12106 (typically purple) or MS-90032 (typically orange). Using the correct 50/50 pre-mixed formula is critical for a service interval of up to 10 years or 150,000 miles and to prevent cooling system damage from incompatible chemistries.

The factory-fill and recommended choice is Mopar OAT Antifreeze/Coolant. It is engineered specifically for Chrysler vehicles and guarantees compatibility. For aftermarket options, you must verify they explicitly state compliance with MS-12106 or MS-90032. Products like Prestone Max American Vehicle Purple or Zerex G-05 are widely recognized as compatible alternatives for these specifications.

It is a common misconception that color alone dictates coolant type. While the 2017 Ram 1500 commonly uses purple coolant, some models may have orange. The definitive identifier is the factory specification code, not the dye. Never mix OAT with older HOAT (Hybrid OAT) or IAT (Inorganic Additive Technology) coolants, as this can cause gelation and drastically reduce the corrosion protection and lifespan of the coolant.

To check and fill, locate the coolant reservoir with the yellow cap. It contains a dipstick for checking the level when the engine is cold. The total system capacity varies by engine. The 5.7L Hemi V8 holds approximately 14 quarts (13.2 liters), while the 3.6L Pentastar V6 holds about 10.5 quarts (9.9 liters). Always confirm this in your owner's manual.

Engine	Coolant Specification	Common Color	Key Property	Major Compatible Products
5.7L V8 / 3.6L V6	MS-12106 or MS-90032	Purple / Orange	OAT (Long-Life)	Mopar OAT, Prestone Max American Purple, Zerex G-05
Using the wrong coolant can lead to accelerated corrosion of the aluminum components in the engine and radiator, heater core failure, and potential premature water pump wear. Industry maintenance data consistently shows that using the manufacturer-specified coolant chemistry is the primary factor in preventing costly cooling system repairs. Always prioritize the specification over brand or color.

[LillianLynn]

I’ve worked on plenty of these trucks in the shop. Forget the color—it’s just dye. Look for the words “MS-12106” or “MS-90032” on the coolant bottle. That’s your bible for a 2017 Ram 1500. The Mopar brand is the safe, no-brainer pick.

If you’re going aftermarket, double-check the label. Prestone’s “American Vehicle Purple” is a solid bet. The reservoir has a yellow cap. Check it cold. If you’re adding more than a quart, something’s likely leaking. These OAT coolants are long-haul stuff, designed to last for years, so don’t swap it out early with the wrong type.

[MacAmir]

As a longtime Ram owner, here’s my practical take. Your manual says MS-12106. I just buy the Mopar OAT coolant from the dealership. It’s priced fairly and I never have to guess if it’s right. My truck’s reservoir takes the purple stuff.

When the level gets low between changes, I only top it off with that same Mopar coolant. I don’t mix brands, even if they claim to meet the spec. The cooling system is too expensive to gamble on. The peace of mind is worth the extra few dollars. I follow the 10-year/150,000-mile change guideline, and my temperature gauge has always been rock steady.

[VonDaniella]

The core requirement is an Organic Acid Technology formula. OAT coolants use different corrosion inhibitors than older technologies. For your Ram, this specifically means chemicals formulated to protect modern aluminum engines and meet extended drain intervals.

Mixing an OAT with a conventional green IAT coolant can create sludge. Using a HOAT coolant, common in many other brands, may not provide optimal protection. This is why sticking to MS-12106/MS-90032 is an engineering requirement, not a suggestion. It ensures the silicate and phosphate levels are correct for your engine’s materials.

[MacIker]

Let’s break down the two main specs. MS-90032 is the older standard, often orange. MS-12106 is the newer, global standard, usually purple. Both are OAT and are generally considered compatible if you need to top off. The key is staying within the OAT family approved by Chrysler.

For a complete drain and fill, using the exact type already in your system is ideal. You can check your owner’s manual or sometimes find a sticker in the engine bay stating the spec. Capacity depends heavily on your engine: the Hemi V8 needs about 14 quarts total, while the V6 needs closer to 10.5 quarts. Always dispose of the old coolant responsibly at a service center or recycling facility, as it is toxic to animals and the environment.