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1985 Chevrolet Corvette

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1985 Corvette.

Transmission Automatic 4-spd

The 1985 Chevrolet Corvette, built on its dedicated sports‑car platform, carries a 4‑quart oil capacity and accepts viscosities of 20W‑20, 20W‑40 or 20W‑50, while its EPA fuel‑economy rating reads 15/21/17 mpg and it is paired with an Automatic 4‑spd transmission. Owner‑complaint records show 16 total grievances, centered on seat belts and accompanied by three recalls, placing this model year ahead of the later 2008 peak of 588 complaints but after the 1992 low of eight, indicating a comparatively stable early‑generation reliability.

Model year2026 2025 2024 2023 2022 2021 2020 2019 1985

Quick specs

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

Engine oil capacity4 qtOEM · verified

Engine oil type20W-20 / 20W-40 / 20W-50OEM · verified

EPA fuel economy15/21/17 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses OE oil filter 12708762. Note the factory fuel filter and serpentine belt are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known.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 filter	12708762
Engine air filter	25042562
Fuel filter	25171792 discontinued
Spark plug	19300382
Front wiper blades	15184702 alt 12363800
Serpentine belt	14092306 discontinued
Thermostat	10105135

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length	176.4 in
Overall width	70.9 in
Overall height	46.9 in
Wheelbase	96.1 in
Curb weight	3232 lb
Weight distribution (front / rear)	51/49

Ratings & economy EPA / vPIC

EPA city / highway / combined	15 / 21 / 17 mpg
Drivetrain	Rear-Wheel Drive
Recommended fuel	Regular Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the Corvette of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

4.4–6.7 sec0–60 mph (tested)quickest 4.40 sec — 1990 ZR-1 Coupe

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
1984	Targa Coupe 5.7L V8	6.70 sec	15.20 sec	205 hp	RWD
1986	Convertible 5.7L V8	6.00 sec	14.50 sec	230 hp	RWD
1988	Coupe 5.7L V8	5.60 sec	14.30 sec	245 hp	RWD
1988	Z51 Coupe 5.7L V8	6.00 sec	14.20 sec	245 hp	RWD
1988	Z51 Coupe 5.7L V8	6.00 sec	14.60 sec	245 hp	RWD
1988	Coupe 5.7L V8	6.54 sec	15.04 sec	245 hp	RWD
1990	ZR-1 Coupe 5.7L V8	4.40 sec	12.80 sec	375 hp	RWD
1990	ZR-1 Coupe 5.7L V8	4.50 sec	12.80 sec	375 hp	RWD

Service quick specs OEM factory data

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

This engine holds 4 qt of 20W-20 / 20W-40 / 20W-50 engine oil, 80W-90 · GL-5 in the differential, DOT 3 brake fluid.

Lubricants & capacities

Brake Fluid	DOT 3
Differential Gear Oil	80W-90 · GL-5
Differential Gear Oil Capacity	4.5 qt
Engine Coolant	ETHYLENE GLYCOL
Engine Oil	20W-20 · 20W-40 · 20W-50 · 15W-40 · 5W-30
Engine Oil Capacity	4 qt
Power Steering Fluid	USE GM PART NO. 1050017 OR EQUIVALENT

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter at 7,500 mi; coolant every 30,000 mi. The big-interval services (every 30,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

At 7,500 mi	Engine Oil Filter (replace) · Throttle Body (torque) · Tire & Wheel Assembly (rotate)
Every 7,500 mi	Accessory Drive Belt (inspect) · Body Latches, Locks & Hinges (inspect) · Brake System (inspect) · Differential (inspect fluid level) · Engine Oil (drain & refill) · Exhaust System (Complete) (inspect)
Every 15,000 mi	Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 30,000 mi	Distributor Cap (inspect) · Distributor Vacuum Advance (inspect) · EGR System (inspect) · Engine Air Filter Element (replace) · Engine Breather Filter (replace) · Engine Coolant System (drain, flush & refill)
Every 100,000 mi	Transmission Fluid & Filter (replace)

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 1985 Corvette falls within a generation that saw a sharp rise in complaints and recalls from the early 1990s through the late 1990s, peaking at 407 complaints in 1998 and 167 in 1997. In 1985 the vehicle reported only eight complaints—substantially below the 1990–1992 average of roughly 20–40—and no recalls, placing it early in the upward trend. Compared to the years immediately before (1990: 39 complaints) and after (1996: 47 complaints), 1985’s complaint count is markedly lower, suggesting fewer mechanical issues at that point in the model line. The top complaint areas for 1985 were seat belts (8), power train (2), steering (2), and suspension (1), with no reported crash or fire complaints, indicating a relatively clean safety record. Given its low complaint and recall profile relative to the generation’s peak, 1985 is a strong candidate for a used purchase, provided a thorough mechanical inspection confirms the reported issues are absent.

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

0 involved a crash · 0 a fire

NHTSA crash-test rating federal NCAP · out of 5 stars

Rollover★★★★★

Owner complaints by model year NHTSA · this generation & adjacent

’90 ’91 ’92 ’93 ’94 ’95 ’96 ’97 ’98 ’99 ’00 ’01 ’02 ’03 ’04 ’05 ’06 ’07 ’08 ’09 ’10 ’11 ’12 ’13 ’14 ’15 ’16 ’17 ’18 ’19 ’20 ’21 ’22 ’23 ’24 ’25

Owner complaints filed with NHTSA, by component

All 16 complaints on record, top 7 components.

Seat Belts8

Power Train2

Steering2

Suspension1

Unknown Or Other1

Parking Brake1

Exterior Lighting1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

06E043000Fuel System, GasolineReported 19/05/2006

CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18… Remedy: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION…

07E088000EquipmentReported 24/10/2007

CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHICLES LIST ABOVE. THE AFFECTED FILTERS… Remedy: HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 2007. OWNERS CAN CONTACT FRAM CUSTOMER SERVICE TOLL-FREE AT 1-800-890-2075.

Technical service bulletins NHTSA · verified

Showing 1 of 1 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
9313110	1993-03-01	Visibility	REAR LIFT WINDOW HARD TO OPEN/HINGE LOOSE TO GLASS. *TW

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 Corvette. 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.

Vehicles taking 4 qt Engine oil filter 12708762 Engine air filter 25042562 Fuel filter 25171792 Spark plug 19300382

Reference guides

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

Vehicle recalls & TSBs OBD-II trouble codes Maintenance schedules Fluid capacities & specs

Frequently asked

How much oil does the 1985 Corvette take?

4 qt of ABOVE 40 degrees F 30, ABOVE 20 degrees F: 20W-20, 20W-40, 20W-50, ABOVE 10 degrees F: 15W-40, BELOW 60 degrees F: 5W-30, per the factory manual.

Does the 1985 Corvette have open recalls?

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

What gas mileage does the Corvette get?

EPA figures are 15 city / 21 highway / 17 combined mpg.