2014 Freightliner Cascadia Oil Capacity & Filter Reference
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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A 2014 Freightliner Cascadia requires between 40 and 47 quarts of oil, depending on the engine option.
Quick Answer
- Oil Capacity: 40 to 47 quarts (37.8 to 44.5 liters) depending on engine
- Recommended Oil Weight: 15W-40 or 5W-40 synthetic for cold climates
- Oil Specification: API CK-4 or CJ-4
- Oil Filter:
- OEM Part Number: Consult dealer for specific engine
- Fram: PH49988
- Wix: 57746XD
- Mobil 1: M1-901
Capacity by Engine Option
| Engine | Oil Capacity (quarts) | Oil Capacity (liters) |
|---|---|---|
| Detroit Diesel DD13 | 42 | 39.8 |
| Detroit Diesel DD15 | 47 | 44.5 |
| Detroit Diesel DD16 | 47 | 44.5 |
| Cummins ISX15 | 40 | 37.8 |
Oil Change Interval
- Normal Duty: 50,000 miles or 12 months, whichever comes first.
- Severe Duty: 25,000 miles or 6 months, whichever comes first. Severe duty includes frequent idling, heavy loads, and operation in dusty conditions.
Drain Plug Torque
The drain plug should be torqued to 35 lb-ft. It is recommended to replace the crush washer with each oil change to prevent leaks.
How to Change the Oil
- Run the engine for a few minutes to warm the oil.
- Place a large drain pan under the oil pan.
- Remove the drain plug and allow the old oil to drain completely.
- Replace the crush washer and reinstall the drain plug, torquing it to 35 lb-ft.
- Remove the old oil filter and replace it with a new one. Be sure to lubricate the new filter's gasket with fresh oil before installing.
- Fill the engine with the correct amount of new oil, as specified by the engine option.
- Start the engine and check for leaks.
Common Issues / Tips
- The 2014 Cascadia is known for having a "slobber tube" that can drip oil. This is a normal part of the crankcase ventilation system, but it can be messy. Consider installing a catch can to minimize the mess.
- Some owners have reported issues with the factory oil pressure sensor. If you are getting erratic readings, it may be a faulty sensor rather than a problem with your oil pressure.
- When changing the oil, it is a good idea to also check the fuel-water separator and drain any accumulated water.
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More specs for the 2014 Freightliner Cascadia
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2014 Freightliner Cascadia Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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