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    Fluid Type Specs

    2016 Kenworth W900 Fluid Type Specs

    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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    Quick reference

    FluidType/SpecCapacity (approximate)
    Engine OilAPI CK-4 or FA-4, SAE 15W-4048 US Quarts (Paccar MX-13)
    Engine CoolantConventional or OAT ELC, CAT EC-110-12 US Gallons
    Transmission FluidEaton PS-164 Rev 7, SAE 50 Synthetic13.5-17.5 US Quarts
    Rear DifferentialSAE 80W-90, API GL-520-30 US Pints each
    Power SteeringAllison C-4, Dexron III, or CAT TO-23-4 US Quarts
    Brake FluidDOT 3 or DOT 4As required
    DEF (Diesel Exhaust Fluid)ISO 22241-115-25 US Gallons
    Washer FluidAll-season washer fluid1-1.5 US Gallons

    Engine Oil

    For the 2016 Kenworth W900, equipped with engines such as the Paccar MX-13 or Cummins ISX, the engine oil specification is crucial for longevity and performance. The primary recommendation is an API CK-4 or, for certain engines, API FA-4 rated oil. These specifications are designed for modern diesel engines with exhaust aftertreatment systems.

    The most common viscosity grade is SAE 15W-40, offering robust protection across a broad range of operating temperatures. Some manufacturers may allow for SAE 10W-30 or 5W-40 in specific climates or for improved fuel economy, but always verify this in your owner's manual or OEM service information for your specific engine.

    Capacity: The Paccar MX-13 engine typically holds around 48 US Quarts (12 gallons) of engine oil. Cummins ISX capacities can vary, so always check the dipstick and owner's manual.

    Intervals: Oil change intervals for heavy-duty trucks can vary significantly based on engine type, duty cycle, fuel quality, and oil analysis results. Common intervals range from 25,000 to 50,000 miles, or more, especially with extended drain formulations and regular oil analysis. Refer to your engine's maintenance manual for precise recommendations.

    Common Pitfalls: Never use an oil that does not meet the API CK-4 or FA-4 specification. Using older API ratings can lead to premature wear, reduced aftertreatment system efficiency, and potential warranty voidance. Avoid mixing different oil types or brands if possible, and always ensure adequate fill levels.

    Engine Coolant

    The 2016 Kenworth W900 typically utilizes a heavy-duty engine coolant, either conventional (fully formulated) or an OAT (Organic Acid Technology) Extended Life Coolant (ELC). Many engine manufacturers, such as Caterpillar (CAT EC-1), Detroit Diesel (DDC Power Cool Plus), or Cummins (CES 14603), have their own specifications.

    Type/Spec: For conventional coolants, a fully formulated, low-silicate, phosphate-free coolant with Supplemental Coolant Additives (SCAs) is typically required. These are often green or blue. For ELC coolants, OAT formulations (often red, orange, or purple) are prevalent, offering longer service life and superior cavitation protection. Always refer to your engine

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    More specs for the 2016 Kenworth W900

    Oil Capacity & Filter

    Capacity, weight, filter PN, drain plug torque, change interval.

    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

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