REAR AXLE LUBRICATION
Rear axle lube quantities must be replaced every 15,000 miles (Except 3500 HD) on vehicles used for trailer towing or use in dusty conditions. Otherwise lube should be checked for condition and fluid level at each oil change. 3500 HD rear axle lube quantities must be replaced every 3,000 miles unless synthetic oil is used. 3500 HD vehicles are NOT equipped with synthetic oil from the factory.
| CAUTION | Rear axle lube quantities must be replaced if the axle has been submerged in water. |
DRAINING FUEL FROM WATER/FUEL SEPARATOR (DIESEL)
| WARNING | Diesel fuel system may be contaminated with fungi or other microorganisms. Keep contaminated fuel away from open skin cuts or sores to prevent skin irritation or infection. |
| WARNING | DO NOT drain fuel/water separator when engine is running or hot. Allow engine to cool before draining. Verify that the WATER IN FUEL light on instrument panel is OFF. |
- Turn off engine and block drive wheels.
- Remove fuel filler cap(s) to release any pressure or vacuum in the vehicle fuel tank(s).
- Place a suitable container under the filter drain hose.
- Open the drain valve. (Scheme 7)
- Start engine and allow to idle for 1 to 2 minutes or until clear fuel is observed.
- Close the drain valve and stop the engine.
- Replace fuel filler cap(s).
- Dispose of drained mixture in a proper manner.
Scheme 7
Note. For more information regarding Diesel Idle Speed Adjustments refer to the ADJUSTMENTS - 6.5L DIESEL article in the ENGINE PERFORMANCE section.
