2014 GMC Sierra 1500 Coolant Capacity & Type
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The 2014 GMC Sierra 1500 cooling system holds approximately 16.3 quarts (15.4 Liters) of coolant, though this can vary slightly by engine. Maintaining the correct coolant type and level is crucial for your truck's longevity and performance.
Quick Answer
- Total Cooling System Capacity: 16.3 – 17.0 quarts (15.4 – 16.1 Liters)
- OEM Coolant Spec: DEX-COOL (Orange/Reddish-Orange, OAT - Organic Acid Technology) meeting GM Standard GM6277M.
- Mix Ratio: 50/50 Prediluted or 50/50 mix of concentrate with distilled water.
Capacity by Engine Option
| Engine Type | Approximate Capacity (Quarts) | Approximate Capacity (Liters) |
|---|---|---|
| 4.3L V6 (LV3) | 16.3 | 15.4 |
| 5.3L V8 (L83) | 17.0 | 16.1 |
| 6.2L V8 (L86) | 17.0 | 16.1 |
Flush Interval
General Motors recommends the following coolant flush intervals for the 2014 GMC Sierra 1500 using DEX-COOL coolant:
- Normal Duty: Every 5 years or 150,000 miles, whichever comes first.
- Severe Duty: If you frequently tow heavy loads, drive in extreme temperatures, or use your truck for commercial purposes, consider replacing your coolant more frequently, possibly every 3 years or 45,000 miles.
Regularly check your coolant level and condition between flushes. If the coolant appears discolored or murky, it
More specs for the 2014 GMC Sierra 1500
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
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 GMC Sierra 1500 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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