ChevroletG-Series Van1985Overview/chevrolet/g-series-van/1985/base/

1985 Chevrolet G-Series Van

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1985 G-Series Van.

The 1985 Chevrolet G-Series Van takes 6 qt of 20W-20 engine oil.

Model year19851983

Quick specs

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

Engine oil capacity6 qtOEM · verified
Engine oil type20W-20 / 15W-40 / 5W-30OEM · verified

Fitment & sizes

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

From the factory this vehicle uses OE oil filter 25160561. Note the factory fuel filter is now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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.

OE service part numbers OEM · verified

Engine oil filter25160561 alt 12737090
Engine air filter06419892
Fuel filter5651803 discontinued
Spark plug19300382
Front wiper blades15184702 alt 12363297
Serpentine belt09442377 alt 88932547
Thermostat10207373 alt 10105135

Service quick specs OEM factory data

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

This engine holds 6 qt of 20W-20 / 15W-40 / 5W-30 engine oil, 80W-90 · GL-5 in the differential, DOT 3 brake fluid.

Lubricants & capacities

Brake FluidDOT 3
Differential Gear Oil80W-90 · GL-5
Differential Gear Oil Capacity4.2 qt
Differential Gear Oil80W-90 · GL-5
Differential Gear Oil Capacity27.0 qt
Engine CoolantETHYLENE GLYCOL
Engine Oil20W-20 · 15W-40 · 5W-30
Engine Oil Capacity6 qt

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 5,000 mi.

At 5,000 miDrive Axle Assembly (drain & refill) · Exhaust Pressure Regulator (inspect)
Every 5,000 miBrake System (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Exhaust System (Complete) (inspect) · Parking Brake Cable (lubricate) · Steering Linkage (lubricate)
At 6,000 miDrive Axle Assembly (drain & refill) · Engine Oil Filter (replace) · Idle Speed Control Motor (inspect)
Every 6,000 miAccessory Drive Belt (inspect) · Body Latches, Locks & Hinges (inspect) · Brake Line (inspect) · Brake Linings (inspect) · Differential (inspect fluid level) · Drive Axle Assembly (drain & refill)
At 7,500 miCarburetor Mounting Fasteners (inspect) · Choke System (inspect) · Distributor Vacuum Advance (inspect) · Early Fuel Evaporation System (inspect) · Tire & Wheel Assembly (rotate)
Every 7,500 miTire & Wheel Assembly (inspect)
Every 10,000 miAir Intake System (inspect) · Underbody Splash Shield (inspect)
Every 12,000 miAir Cleaner Manifold Heat Control Actuator (inspect) · Carburetor Mounting Fasteners (inspect) · Drive Axle Assembly (drain & refill) · Engine Oil Filter (replace) · Fuel Filter (replace) · Idle Speed Control Motor (inspect)
Every 15,000 miEngine Air Filter Element (replace) · Exhaust Pressure Regulator (inspect) · Tire & Wheel Assembly (rotate)

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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VIN
Decode a VIN to confirm the transmission and build data for a specific G-Series Van. OEM
Build data
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Recalls
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Vehicles with shared specs

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

Reference guides

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

Frequently asked

How much oil does the 1985 G-Series Van take?

6 qt of ABOVE 40 degrees F: 30, ABOVE 20 degrees F: 20W-20, ABOVE 10 degrees F: 15W-40, BELOW 60 degrees F: 5W-30, per the factory manual.