CHECKING FLUID LEVEL
Note. F350 Super Duty commercial chassis has a parking brake assembly mounted on rear of transmission. Parking brake assembly contains a separate reservoir; fluid level must be checked separately from transmission. See PARKING BRAKE ASSEMBLY under CHECKING FLUID LEVEL.
- Transmission or transaxle must be at normal operating temperature with vehicle on level ground. Apply parking brake, and run engine at curb idle. Shift gear selector lever through all positions, ending in PARK. WARNING: On 4WD models, ensure transfer case is in any gear range EXCEPT Neutral before checking transmission fluid level.
- Fluid level should be in crosshatch area on dipstick if checked at operating temperature. If transmission is at room temperature, fluid level should be between 2 dimples on bottom of dipstick.
- DO NOT overfill. Check condition of fluid for contamination and burned smell. Fully reseat dipstick.
RECOMMENDED FLUID
Note. For recommended transfer case fluid, see the AUTO TRANS OVERHAUL article in AUTO TRANS OVERHAUL section.
| Application | Fluid Type |
|---|---|
| E4OD | Mercon (XT-2-QDX) |
TRANSMISSION FLUID APPLICATION
DRAINING & REFILLING
| WARNING | On vehicles with electrical air suspension, power to air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. Air suspension switch is located behind right kick panel area. Failure to do so can result in inflation or deflation of air springs, which may cause vehicle to shift during these operations. |