1. Product Overview
The APSG DS-CJDT1 Transmission Fluid Dipstick Tool is designed for accurately measuring the automatic transmission fluid level in select Chrysler, Jeep, Dodge, and VW vehicles that were originally manufactured without a dedicated transmission dipstick. This tool is intended for measurement purposes only and should not be left installed in the vehicle.
It is compatible with various engine sizes including 2.7L, 3.5L, 3.6L, 3.7L, 5.7L, 6.1L, and 6.4L, and transmission types such as 42RLE, NAG1, and 62TE. The tool includes a new O-ring for the sealing cap and a detailed instruction chart to assist with fluid level interpretation.

Image 1: The APSG DS-CJDT1 Transmission Fluid Dipstick Tool shown alongside its accompanying instruction chart, which details fluid level measurements for various vehicle models and temperatures.
2. Safety Information
- Always ensure the vehicle is on a level surface before checking fluid levels.
- Exercise caution when working near hot engine components and fluids.
- Wear appropriate personal protective equipment, such as gloves and eye protection.
- Do not leave the dipstick tool in the transmission tube after checking the fluid level. It is a measuring tool, not a permanent component.
3. Setup and Preparation
- Vehicle Positioning: Park the vehicle on a level surface. Engage the parking brake.
- Engine Temperature: For accurate readings, the transmission fluid temperature is crucial. Refer to your vehicle's service manual or the included chart for specific temperature requirements (cold or hot).
- Locate Transmission Fill Tube: Identify the transmission fluid fill tube, typically located in the engine bay. This tube is usually sealed with a cap.
- Remove Cap: Carefully remove the existing cap from the transmission fill tube.

Image 2: The APSG DS-CJDT1 Transmission Fluid Dipstick Tool, coiled, demonstrating its flexible design for reaching the transmission pan.
4. Operating Instructions: Checking Transmission Fluid Level
Follow these steps to accurately check your transmission fluid level:
- Insert Dipstick: Carefully insert the APSG DS-CJDT1 dipstick tool into the transmission fill tube until it reaches the transmission pan and stops. Do not force it. Note that the dipstick may not go in all the way, as it is designed to measure the fluid level and then be removed.
- Wait for Reading: Allow a few seconds for the fluid level to stabilize on the dipstick.
- Remove and Read: Slowly remove the dipstick tool. Observe the fluid level on the measuring scale.
- Consult Chart: Compare the fluid level reading on the dipstick to the provided instruction chart. The chart specifies the correct fluid level based on your vehicle's year, model, engine, transmission type, and current fluid temperature (cold or hot).
- Adjust Fluid (if necessary): If the fluid level is outside the recommended range, add or drain transmission fluid as required. Always use the correct type of transmission fluid specified by your vehicle manufacturer.
- Re-check: After any adjustment, re-insert the dipstick and re-check the fluid level to ensure accuracy.
- Replace Cap: Once the fluid level is confirmed to be correct, remove the dipstick tool and replace the original sealing cap firmly onto the transmission fill tube. Ensure the new O-ring is properly seated for a secure seal.
Important Note: This dipstick is a measuring tool and should be removed after checking the fluid level. It is not designed to remain in the vehicle during operation.

Image 3: A detailed view of the APSG DS-CJDT1 dipstick's measurement markings, shown with the instruction chart that provides specific fluid level targets for various vehicle configurations and temperatures.
5. Maintenance and Care
- Cleaning: After each use, wipe the dipstick tool clean with a lint-free cloth to remove any residual transmission fluid.
- Storage: Store the dipstick tool in a clean, dry place away from extreme temperatures and direct sunlight.
- O-Ring Inspection: Periodically inspect the O-ring on the sealing cap for any signs of wear or damage. Replace if necessary to ensure a proper seal.
6. Troubleshooting
- Inaccurate Readings: Ensure the vehicle is on a level surface and the engine/transmission is at the correct temperature as specified by the chart. Incorrect temperature or vehicle angle can lead to false readings.
- Dipstick Not Inserting Fully: The dipstick is designed to reach the pan. If it does not insert fully, ensure there are no obstructions in the transmission fill tube. Do not force the tool.
- Lost Instruction Chart: If the instruction chart is lost, contact APSG customer support for a replacement or refer to official vehicle service manuals for fluid level specifications.
7. Specifications
| Brand: | APSG |
| Model Number: | DS-CJDT1 |
| Item Weight: | 2.89 ounces |
| Product Dimensions: | 50 x 1.38 x 0.25 inches (L x W x H) |
| UPC: | 795525245332 |
| OEM Part Number: | 9336A |
| Specific Uses: | Checking and adjusting automatic transmission fluid level on select Chrysler, Dodge, Jeep, VW vehicles. |
8. Warranty Information
The APSG DS-CJDT1 Transmission Fluid Dipstick Tool comes with a Lifetime Replacement Warranty. This warranty covers defects in materials and workmanship under normal use. For warranty claims or further details, please contact APSG customer support.
9. Customer Support
For any questions, technical assistance, or warranty inquiries regarding your APSG DS-CJDT1 Transmission Fluid Dipstick Tool, please contact APSG customer support. Refer to the packaging or the APSG official website for contact details.
Manufacturer: APSG





