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2015 Chevrolet Express

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2015 Express.

Body TRUCKTransmission Automatic 6-spd

The 2015 Chevrolet Express is a full-size work truck built on GM's longstanding full-size van platform, powered by a Vortek engine requiring 6.0 quarts of 5W-30 motor oil and paired with a six-speed automatic transmission, achieving EPA fuel economy ratings of 10 city, 15 highway, and 12 mpg combined—a modest figure reflecting the demands of its hauling and cargo-carrying mission. This model year arrived with three recalls on record, with service brakes emerging as the primary complaint area among the eight total owner complaints logged for the 2015 Express specifically. When viewed against the broader complaint history spanning 1995 through 2026, the 2015 Express sits well below the peak of 127 complaints recorded in 2003 and appears to benefit from the manufacturer's accumulated refinements over the model's long production run, positioning it among the more reliable iterations of this commercial workhorse despite the brake-related issues flagged.

Model year201820172016201520112010200920082007

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity6.0 qtOEM · verified
Engine oil type5W-30OEM · verified
EPA fuel economy10/15/12 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 78 · 600 CCA battery, OE oil filter 12691158. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 78 · 600 CCAOEM · verified

OE service part numbers OEM · verified

Engine oil filter12691158 alt 12690386
Engine air filter20815924 alt 22909882
Fuel filter19259252 alt 12646512
Spark plug12680072
Battery88866305 alt 88866106
Front wiper blades15214346
Serpentine belt19210691 alt 12649156
Thermostat12680544 alt 97241129

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 6-spd

Dimensions & weight NHTSA vPIC

Overall length186.2 in
Overall width68.1 in
Overall height73.6 in
Wheelbase115.4 in
Curb weight3252 lb
Track (front / rear)59.8 / 59.8 in

Ratings & economy EPA / vPIC

EPA city / highway / combined10 / 15 / 12 mpg
DrivetrainRear-Wheel Drive
Recommended fuelRegular Gasoline

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 6.0 qt of 5W-30 engine oil, SAE 75W · SYNTHETIC in the differential, DOT 3 brake fluid. Torque the oil drain plug to 62.0 ft-lbs. The firing order is 1-2-7-8-4-5-6-3. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Automatic Transmission FluidDEXRON(R)-VI GM P/N 88861003
Automatic Transmission Fluid Capacity6.0
Brake FluidDOT 3
Brake Fluid Capacity2.1
Differential Gear OilSAE 75W · Synthetic
Differential Gear OilSAE 75W · SYNTHETIC
Differential Gear Oil Capacity4.4 qt
Engine Coolant50

Engine torques

Camshaft Sprocket and/or Gear Bolt(s)18.0 ft-lbs
Exhaust Manifold to Cylinder Head Bolts42
Engine Oil Pan Drain Plug18.0 ft-lbs
Engine Oil Pan Drain Plug18.0 ft-lbs
Engine Oil Pan Drain Plug62.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs18.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs15.0 ft-lbs
Engine Valve Cover Bolts9.0 ft-lbs

Chassis torques

Driveshaft Flange to Transmission38.0 ft-lbs
Leaf Spring to Axle (U-bolts)103.0 ft-lbs
Leaf Spring to Chassis Bracket107.0 ft-lbs
Leaf Spring to Rear Shackle66.0 ft-lbs
Leaf Spring Rear Shackle to Chassis Bracket66.0 ft-lbs
Steering Track (Rod End) Bolts47.0 ft-lbs
Front Wheel Hub155 ft-lbs
Front Wheel Hub Bearing Housing BoltsInstall a new retaining nut. ft-lbs

Ignition

Cylinder Firing Order1-8-7-2-6-5-4-3
Cylinder Firing Order1-2-7-8-4-5-6-3
Spark Plug ManufacturerAC Delco
Spark Plug Gap.037 - .043 in
Spark Plug Torque15 ft-lbs
Spark Plug ManufacturerAc Delco
Spark Plug Gap.037 - .043 in
Spark Plug Torque11 ft-lbs

Battery & A/C

RefrigerantR134a
Oil GroupPAG
Oil Capacity10.0 oz
Standard BCI Group Number78
Standard BCI Cranking Performance600 cca
Standard BCI Group Number78
Standard BCI Cranking Performance600 cca
Standard BCI Group Number78

Service checks

Primary Fuel Pump Pressure1450 engine cranking psi
Engine Compression100 min psi

Brakes

ABS Sensor Torque9.3
Minimum Pad ThicknessFront: 0.030; Rear: 0.030 specification
Variation from Parallelism Thickness Variation0.0001
Maximum Rotor Runout0.005

Multi-step torque procedures OEM · verified

Camshaft Sprocket and/or Gear Bolt(s) — tightening sequence 1 stages
148.0 ft. lbs., Step 2: 9048 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
115.0 ft. lbs., Step 2: 8515 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
115.0 ft. lbs., Step 2: 8515 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
147.0 ft. lbs., Step 2: 30 degrees, Step 3: 3047 ft. lbs
Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Do not allow oil on cylinder head or head bolt bosses · M11 Bolts:

122.0 ft. lbs.22 ft. lbs
290 degrees90 degrees
370 degrees; M8 Bolts:70 degrees
122.0 ft. lbs.22 ft. lbs
Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Do not allow oil on cylinder head or head bolt bosses · M11 Bolts:

122.0 ft. lbs.22 ft. lbs
290 degrees90 degrees
370 degrees; M8 Bolts:70 degrees
122.0 ft. lbs.22 ft. lbs
Cylinder Head — tightening sequence 3 stages

Prep Do not reuse old bolts. Do not allow oil on cylinder head or head bolt bosses · M11 Bolts:

122.0 ft. lbs.22 ft. lbs
290 degrees90 degrees
370 degrees; M8 Bolts:70 degrees
122.0 ft. lbs.22 ft. lbs
Cylinder Head — tightening sequence 4 stages

Prep Use new bolts · M12 Bolts:

137.0 ft. lbs.37 ft. lbs
259 ft. lbs.59 ft. lbs
360 degrees60 degrees
490 degrees; Reuse old bolts if possible; M8 Bolts:90 degrees
118.0 ft. lbs.18 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 97,500 mi.

At 6,000 miWheel Lug Nut (torque)
Every 7,500 miAccelerator Pedal (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Shift Interlock Solenoid (inspect) · Brake System (inspect) · Engine Coolant System (inspect fluid level) · Engine Oil (inspect fluid level)
Every 22,500 miFuel Filter (replace)
Every 45,000 miEngine Air Filter Element (replace) · Fuel Evaporative Emission Control System (inspect)
Every 97,500 miSpark Plug Wires (inspect) · Spark Plugs (replace) · Transmission Fluid & Filter (replace)
At 150,000 miAccessory Drive Belt (inspect) · Brake Hydraulic System (drain, refill & bleed)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2015 model year is absent from the year‑by‑year federal record provided, which spans 1995–2007 and then jumps to 2023–2026, leaving a gap that prevents direct annual comparison. The target‑year summary shows five total complaints distributed across Service Brakes (2), Fuel System (1), Engine (1), and Electrical System/Latches/Locks/Linkages (1), with zero crash or fire complaints reported. Across the documented generation arc, complaints peaked at 127 in 2003 before falling to single digits by 2023–2024, while recalls fluctuated without a clear pattern. Without 2015’s full yearly totals, its precise position in that trend cannot be confirmed, though the low summary count aligns with the generation’s late‑stage decline. The data does not specify root causes for the listed complaint areas. Based on the limited federal record, 2015 appears to be a low‑complaint year, but the missing annual entry warrants independent verification before purchase.

3
Open recalls
NHTSA campaigns
1561
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
8
Owner complaints
0 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent
’95’96’97’98’99’00’01’02’03’04’05’06’07’23’24’26

Owner complaints filed with NHTSA, by component

All 8 complaints on record, top 7 components.

Service Brakes2
Fuel System, Gasoline1
Engine1
Electrical System,Latches/Locks/Linkages1
Structure,Latches/Locks/Linkages1
Suspension,Electrical System1
Suspension,Tires1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 1561 bulletins on record with NHTSA.

BulletinDateComponentSummary
PIT6247B2026-05-04Unknown Or OtherThis Preliminary information communicates direction to find information at…
PIT3271Q2026-04-01Unknown Or OtherThis preliminary information communicates information about how to determine if a wheel…
PIP61042026-03-09Unknown Or OtherThis Preliminary information communicates the steps on how to save a GDS2 Session Log and…
PIP4902V2026-03-09Unknown Or OtherThis preliminary information advises a dealer on how to email GDS2 session logs into…
PIT6400A2026-01-16Unknown Or OtherThis PI Communications information on an alternative product dealers can use to perform…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Express. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Group 78 batteryVehicles taking 6.0 qtEngine oil filter 12691158Engine air filter 20815924Fuel filter 19259252Spark plug 12680072

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBsOBD-II trouble codesTorque specificationsMaintenance schedulesFluid capacities & specs

Frequently asked

How much oil does the 2015 Express take?

6.0 qt of SAE 5W-30 engine oil approved to the dexos specification, per the factory manual.

Does the 2015 Express have open recalls?

NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Express get?

EPA figures are 10 city / 15 highway / 12 combined mpg.