Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Service Intervals
Check fluid level at 12 month/7500 mile intervals (6000 miles on heavy duty vehicles). Periodic draining and refilling of transmission is not required, with the following exceptions:
- On vehicles equipped with 5-speed manual transaxle, drain and refill transaxle at 30,000 mile intervals.
- On all "S" Series trucks with 4-speed transmission, change transmission fluid after the first 7500 miles and at 35,000 mile intervals thereafter.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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