Look for a tag on the transmission itself or in your owner's manual. Common transmissions in 1993 Dodge Ram 1500s included:
* 3-speed automatic (e.g., 36RH, 46RH): These typically used ATF+4 fluid. However, checking your owner's manual is crucial, as some might have specified other ATF types. Using the wrong fluid can severely damage the transmission.
* 5-speed manual: Manual transmissions use gear oil, often a SAE 75W-90 or a similar weight, depending on the specific transmission. Again, consult your owner's manual.
Do not guess. Using the incorrect fluid will likely damage your transmission. Find your transmission's identification tag and your owner's manual for the definitive answer. If you cannot locate this information, a local mechanic or a Dodge parts dealer should be able to help you identify your transmission and recommend the correct fluid.
