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1995 GMC Truck C-Series Pickup

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1995 C-Series Pickup.

The 1995 GMC Truck C-Series Pickup takes 4 qt of 5W-30 engine oil.

Model year1995 1985

Quick specs

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

Engine oil capacity4 qtOEM · verified

Engine oil type5W-30 APIOEM · verified

Lug nut torque140 ft-lbsOEM · 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 25160561. 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

Tire sizeLT225-75R16DOEM · verified

Wheel / rim6.5-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filter	25160561 alt 12737090
Engine air filter	06484235 alt 19259103
Fuel filter	25121524 alt 25171792
Spark plug	19302741
Front wiper blades	93441742 alt 15184702
Serpentine belt	22518599 alt 10227127
Thermostat	12559338 alt 10190925

Service quick specs OEM factory data

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

This engine holds 4 qt of 5W-30 API engine oil, 80W-90 · GL-5 in the differential, DOT 3 brake fluid. Torque lug nuts to 140 ft-lbs. The firing order is 1-6-5-4-3-2. 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

Brake Fluid	DOT 3
Differential Gear Oil	80W-90 · GL-5
Differential Gear Oil Capacity	14.0 qt
Differential Gear Oil	80W-90 · GL-5
Differential Gear Oil Capacity	14.0 qt
Engine Oil	5W-30 · API
Engine Oil Capacity	4 qt
Engine Oil	5W-30 · API

Engine torques

Cylinder Head Steps	3
Cylinder Head Steps	3
Cylinder Head Steps	Apply sealant GM P/N 12346004
Cylinder Head Steps	Apply sealant GM P/N 12346004
Cylinder Head Steps	Apply the thread sealant GM P/N 12346004
Cylinder Head Steps	Apply sealer GM P/N 12346004
Intake Manifold to Engine Bolts	35 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	40 ft-lbs

Chassis torques

Leaf Spring to Axle (U-bolts)	110.0-150.0 ft-lbs
Leaf Spring to Chassis Bracket	110.0 ft-lbs
Leaf Spring Rear Shackle to Chassis Bracket	70.0 ft-lbs
Lug Nuts	140 ft-lbs

Ignition

Cylinder Firing Order	1-6-5-4-3-2
Cylinder Firing Order	1-8-4-3-6-5-7-2
Cylinder Firing Order	1-8-7-2-6-5-4-3
Cylinder Firing Order	1-8-4-3-6-5-7-2
Cylinder Firing Order	1-6-5-4-3-2
Spark Plug Manufacturer	AC Delco
Spark Plug Gap	0.060 in
Spark Plug Torque	11.0 ft-lbs

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	2.00-2.50 lbs
Oil Group	PAG
Oil Type	GM part number 12345923 or equivalent.
Oil Capacity	8.00 oz
Standard BCI Group Number	78
Standard BCI Cranking Performance	600 cca
Standard BCI Group Number	78

Service checks

Pressure Test	15 psi
Radiator Cap Pressure Relief	15 psi
Thermostat Opening Temperature	192 °F
Pressure Test	15 psi
Radiator Cap Pressure Relief	15 psi
Thermostat Opening Temperature	195 °F
Pressure Test	15 psi
Radiator Cap Pressure Relief	15 psi

Brakes

Torque Caliper to Bracket	15 ft-lbs
Torque to Knuckle	38 ft-lbs
Torque Caliper to Bracket	15 ft-lbs
Torque to Knuckle	38 ft-lbs
Minimum Pad Thickness	Front: 0.030; Rear: 0.030 specification
Drum Runout Limit	0.006 in
Drum Nominal Diameter	10 in / 11.15 in / 13 in
Drum Maximum Machining	10.05 in / 11.21 in / 13.06 in

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 4 stages

1	all bolts	22 ft. lbs
2	long bolts	75 degrees
3	medium bolts	65 degrees
4	55

Cylinder Head — tightening sequence 4 stages

1	20 ft. lbs.	20 ft. lbs
2	55 ft. lbs.	55 ft. lbs
3	55 ft. lbs.	55 ft. lbs
4	90

Cylinder Head — tightening sequence 3 stages

1	30 ft. lbs.	30 ft. lbs
2	60 ft. lbs.	60 ft. lbs
3	80

Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages

22.0

Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages

22.0

Intake Manifold to Engine Bolts — tightening sequence 1 stages

40.0

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 6,000 mi.

Every 3,000 mi	King Pin (lubricate)
At 5,000 mi	Drive Axle Assembly (drain & refill)
Every 5,000 mi	Brake Hydraulic System (inspect fluid level) · Brake System (inspect) · Differential (inspect fluid level) · Power Steering System (inspect) · Shift Linkage (lubricate) · Steering System (inspect)
At 6,000 mi	Drive Axle Assembly (drain & refill) · Tire & Wheel Assembly (rotate)
Every 6,000 mi	Brake Line (inspect) · Brake Linings (inspect) · CV Joint Boot (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Parking Brake Cable (lubricate)
Every 7,500 mi	Exhaust System (Complete) (inspect) · Tire & Wheel Assembly (rotate)
Every 10,000 mi	Air Intake System (inspect)
Every 12,000 mi	Air Cleaner Manifold Heat Control Actuator (inspect) · Radiator Fan Assembly (inspect) · Tire & Wheel Assembly (rotate) · Underbody Splash Shield (inspect)
Every 15,000 mi	Engine Air Filter Element (replace)

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 C-Series Pickup. 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 battery Vehicles taking 4 qt Engine oil filter 25160561 Engine air filter 06484235 Fuel filter 25121524 Spark plug 19302741

Reference guides

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

OBD-II trouble codes Torque specifications Maintenance schedules Fluid capacities & specs

Frequently asked

How much oil does the 1995 C-Series Pickup take?

4 qt of 5W-30 API, per the factory manual.