OldsmobileEighty Eight1999Overview/oldsmobile/eighty-eight/1999/base/

1999 Oldsmobile Eighty Eight

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1999 Eighty Eight.

Transmission Automatic 4-spd

The 1999 Oldsmobile Eighty Eight takes 4.5 qt of 10W-30 engine oil and is EPA-rated at 16/25/19 mpg city/highway/combined.

Model year1999199819921989

Quick specs

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

Engine oil capacity4.5 qtOEM · verified
Engine oil type10W-30 APIOEM · verified
Lug nut torque100 ft-lbsOEM · verified
EPA fuel economy16/25/19 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 · 690 CCA battery, OE oil filter 12731175. Note the factory fuel filter, front wiper blades and serpentine belt are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known.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.

Battery groupBCI 78 · 690 CCAOEM · verified
Tire sizeP225-60R16OEM · verified
Wheel / rim7-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filter12731175
Engine air filter19259030
Fuel filter25121293 discontinued
Spark plug12681664
Front wiper blades25689175 discontinued
Serpentine belt19244953 discontinued
Thermostat24505924 alt 24506985

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Ratings & economy EPA / vPIC

EPA city / highway / combined16 / 25 / 19 mpg
DrivetrainFront-Wheel Drive
Passenger volume106 cu ft
Cargo volume18 cu ft
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

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

This engine holds 4.5 qt of 10W-30 API engine oil. Torque lug nuts to 100 ft-lbs, the oil drain plug to 18.0 ft-lbs. 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

Engine Oil10W-30 · API
Engine Oil Capacity4.5 qt

Engine torques

Intake Manifold to Engine BoltsLower: 11 ft-lbs; Upper: 7.4 ft-lbs
Exhaust Manifold to Cylinder Head Bolts22 ft-lbs
Engine Oil Pan Drain Plug18.0 ft-lbs
Engine Valve Cover Bolts7.4 ft-lbs

Chassis torques

Lug Nuts100 ft-lbs
Front Wheel Hub118 ft-lbs

Ignition

Ignition Coil Primary Resistance.5-.9 ohms
Ignition Coil Secondary Resistance5,000-8,000 ohms
Spark Plug ManufacturerAC Delco
Spark Plug Gap0.060 in
Spark Plug Torque11.0 ft-lbs

Battery & A/C

RefrigerantR134a
Refrigerant Capacity2.00 lbs
Oil GroupPAG
Oil Type46
Oil Capacity9.00 oz
Standard BCI Group Number78
Standard BCI Cranking Performance690 cca

Service checks

Pressure Test15 psi
Radiator Cap Pressure Relief15 psi
Thermostat Opening Temperature188-206 °F
Fuel Pump Pressure Minimum55.0 psi
Key ON Engine OFF (KOEO)48-55
RPM38-52 @ Idle rpm
Injector Primary Resistance11.4-12.6 na ohms
Engine Compression100

Brakes

Torque Caliper to Bracket38 ft-lbs
Torque to Knuckle100 ft-lbs
Minimum Pad ThicknessFront: 0.030; Rear: 0.030 specification
Rotor Max Parallel Variation0.0005 in
Rotor Runout Limit0.002 in
Rotor Nominal Thickness From1.26 in
Rotor Nominal Thickness To1.26 in
Rotor Minimum Machining1.224 in

Multi-step torque procedures OEM · verified

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
1110 ft. lbs., step 2: 76110 ft. lbs
Cylinder Head — tightening sequence 3 stages
137 ft. lbs.37 ft. lbs
2120 degrees.120 degrees
3Bolts 1-430 degrees

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 100,000 mi; coolant at 150,000 mi. The big-interval services (at 150,000 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.

Every 7,500 miBrake System (inspect) · Door Hinge (lubricate) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Hood Hinge (lubricate) · Hood Latch (lubricate)
Every 15,000 miCabin Air Filter (replace)
Every 30,000 miEngine Air Filter Element (replace) · Fuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect)
Every 60,000 miAccessory Drive Belt (inspect)
Every 100,000 miSpark Plug Wires (inspect) · Spark Plugs (replace) · Transmission Fluid & Filter (replace)
At 150,000 miEngine Coolant System (drain, flush & refill)

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
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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 1999 Eighty Eight take?

4.5 qt of 10W-30 API, per the factory manual.

What gas mileage does the Eighty Eight get?

EPA figures are 16 city / 25 highway / 19 combined mpg.