GMC TruckP-Series RV/Van Commercial Chassis1995Overview/gmc-truck/p-series-rv-van-commercial-chassis/1995/base/

1995 GMC Truck P-Series RV/Van Commercial Chassis

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1995 P-Series RV/Van Commercial Chassis.

The 1995 GMC Truck P-Series RV/Van Commercial Chassis takes 4 qt of 5W-30 engine oil.

Model year19951989

Quick specs

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

Engine oil capacity4 qtOEM · verified
Engine oil type5W-30 APIOEM · 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. 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

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 the oil drain plug to 18.0 ft-lbs. The firing order is 1-8-4-3-6-5-7-2. 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 FluidDOT 3
Differential Gear Oil80W-90 · GL-5
Differential Gear Oil Capacity14.0 qt
Differential Gear Oil80W-90 · GL-5
Differential Gear Oil Capacity5.5 qt
Engine CoolantETHYLENE GLYCOL
Engine Oil5W-30 · API
Engine Oil Capacity4 qt

Engine torques

Cylinder Head Steps3
Intake Manifold to Engine Bolts35 ft-lbs
Exhaust Manifold to Cylinder Head Bolts40 ft-lbs
Engine Oil Pan Drain Plug18.0 ft-lbs
Engine Oil Pan Drain Plug18.0 ft-lbs
Engine Oil Pan Drain Plug18.0 ft-lbs
Engine Oil Pan Drain Plug62.0 ft-lbs
Engine Oil Pan Drain Plug18.0 ft-lbs

Ignition

Cylinder Firing Order1-6-5-4-3-2
Cylinder Firing Order1-8-4-3-6-5-7-2
Spark Plug ManufacturerAC Delco
Spark Plug Gap0.035 in
Spark Plug Torque11.0 ft-lbs
Spark Plug ManufacturerAC Delco
Spark Plug Gap0.060 in
Spark Plug Torque11.0 ft-lbs

Battery & A/C

Standard BCI Group Number78
Standard BCI Cranking Performance600 cca
Standard BCI Group Number78 DIESEL
Standard BCI Cranking Performance600 DIESEL cca
Standard BCI Group Number75
Standard BCI Cranking Performance525 cca
Optional BCI Group Number78
Optional BCI Cranking Performance600 cca

Service checks

Pressure Test15 psi
Radiator Cap Pressure Relief15 psi
Thermostat Opening Temperature192 °F
Pressure Test15 psi
Radiator Cap Pressure Relief15 psi
Thermostat Opening Temperature195 °F
Engine Compression100 Minimum psi
Engine Compression215 Nominal psi

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 4 stages
1all bolts22 ft. lbs
2long bolts75 degrees
3medium bolts65 degrees
455
Cylinder Head — tightening sequence 4 stages
120 ft. lbs.20 ft. lbs
255 ft. lbs.55 ft. lbs
355 ft. lbs.55 ft. lbs
490
Cylinder Head — tightening sequence 3 stages
130 ft. lbs.30 ft. lbs
260 ft. lbs.60 ft. lbs
380

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

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Vehicles with shared specs

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Reference guides

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

Frequently asked

How much oil does the 1995 P-Series RV/Van Commercial Chassis take?

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