Checking the transmission fluid level in your Ram 1500 is an essential part of regular vehicle maintenance. Transmission fluid lubricates internal components, keeps temperatures under control, and ensures smooth gear shifting. Driving with low or contaminated transmission fluid can lead to poor performance, slipping gears, or even costly transmission damage. However, checking the fluid level on a Ram 1500 is not always as simple as it is on older vehicles. The process depends largely on the model year and transmission type.
In this guide, we’ll walk you through how to check the transmission fluid level on a Ram 1500 step by step, explain why it’s important, and share a few helpful tips to avoid common mistakes.
How to Check Transmission Fluid Level on a Ram 1500
Why Checking Transmission Fluid Is Important
Transmission fluid performs several critical functions. It lubricates moving parts, cools the transmission, provides hydraulic pressure for shifting, and helps prevent wear. Over time, fluid levels can drop due to small leaks or internal consumption, and the fluid itself can degrade due to heat and friction.
If your Ram 1500 has low transmission fluid, you may notice symptoms such as:
- Hard or delayed shifting
- Slipping gears
- Transmission overheating
- Unusual noises or vibrations
Regularly checking the transmission fluid level helps you catch problems early and extend the life of your transmission.
Know Your Ram 1500 Transmission Type
Before checking the fluid, it’s important to know which transmission your Ram 1500 has, because the procedure varies.
- Older Ram 1500 models (typically pre-2012) often have a traditional automatic transmission with a dipstick.
- Newer Ram 1500 models (2013 and newer, especially with 8-speed automatic) usually do not have a transmission dipstick. These are known as “sealed” transmissions.
The steps below cover both types.
How to Check Transmission Fluid on Ram 1500 with a Dipstick
If your Ram 1500 has a transmission dipstick, the process is relatively straightforward.
Step-by-Step Instructions:
- Park on a level surface
Make sure your truck is on flat ground to get an accurate reading. - Warm up the engine
Turn on the engine and run it for five to ten minutes. Transmission fluid expands when warm, so checking it cold can give a false reading. - Shift through all gears
With your foot on the brake, move the gear selector slowly through all gears (P, R, N, D, etc.), then return it to Park. - Locate the transmission dipstick
Open the hood and find the transmission dipstick, usually marked and located near the back of the engine bay. - Check the fluid level
- Take the dipstick out, clean it, put it back in completely, and then take it out once again. The “HOT” or “FULL” range is where the fluid level should be.
- Inspect fluid condition
Healthy transmission fluid is typically red or light brown and has a clean smell. Dark fluid or a burnt odor may indicate a problem.
Must Read: How Much Fluid Does a 4L60E Transmission Hold?

How to Check Transmission Fluid on Sealed Ram 1500 Transmissions
Most newer Ram 1500 trucks come with sealed transmissions that do not have a dipstick. While these are designed to require less maintenance, fluid level checks are still possible.
Important Note:
Checking fluid on sealed transmissions usually requires special tools and precise temperature measurements. If you’re not comfortable working under your truck, it’s best to visit a professional mechanic.
General Process:
- Lift the vehicle safely
The truck must be level and securely lifted using a hoist or jack stands. - Monitor transmission temperature
The fluid level must be checked at a specific temperature range, often using a scan tool. - Locate the fill or check plug
This plug is usually on the side or bottom of the transmission pan. - Check fluid flow
When the plug is removed at the correct temperature, a small amount of fluid should slowly drip out. No fluid indicates a low level.
Because of the complexity, many Ram 1500 owners prefer having this done at a dealership or transmission shop.
What Transmission Fluid Does a Ram 1500 Use?
The type of transmission fluid depends on your truck’s transmission. Common types include:
- ATF+4 for older automatic transmissions
- ZF Lifeguard fluid for 8-speed automatic transmissions
Always check your owner’s manual before adding or changing transmission fluid. Serious harm can result from using the incorrect fluid.
Final Thoughts
Knowing how to check the transmission fluid level on a Ram 1500 can save you money and prevent major mechanical issues. Older models with dipsticks allow for easy DIY checks, while newer sealed transmissions require extra care and tools. Regardless of the model year, paying attention to fluid level and condition is key to keeping your truck running smoothly.
If you’re ever unsure, consulting a professional mechanic is always a smart choice—especially when dealing with sealed transmissions.