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World's Best Oils & Filters for 1990 Buick Reatta

Oils & FiltersMaintenance ScheduleService BulletinRecallsImages
1990 Buick Reatta
3.8L 6-cyl Engine Code [C] Engine Code [C]
165 bhp. @ 4800 rpm / Torque: 210 ft. lbs. @ 2000 rpm
3.8L - V 6-cyl (Gasoline)

We know your Buick Reatta
& We have the World's Best Oils, Filters & more!

AMSOIL manufacture's the World's best synthetic lubricant's & filters since 1972. AMSOIL also offers substitute brands such as WIX, Mann & Donaldson, making us your one-stop shop for all automotive maintenance needs.

How do I use this Product Cross Reference Guide?

Product Cross Reference Guide: This product cross reference guide follows recommendations outlined in your owners manual and also reflects periodic service recommendation updates from the original equipment manufacturer for this particular model (1990 Buick Reatta with engine code [C]) show example...

For example, the manufacturer may have recommended 5W30 motor oil at the time of production (owners manual) & later revised the recommendation to 5W20. This guide will reflect latest recommendation by the manufacturer for this model. If there are no special instructions from the manufacturer, the owner can choose to follow either one of the recommendation without voiding warranty hide example.

Optional Equipment Listing This guide lists all available equipment options such as transmission options, differentials etc. for 1990 Buick Reatta with engine code [C] hide.
Product Availability Listing This guide lists all available AMSOIL & substitute brand products that meet or exceed OEM (Buick) recommendation for each equipment. Any one of the recommended product can be used. One may be better than the other, you can review product details & price or contact us to ask our opinion pertaining to your usage and preference hide.
Operating Temperature Original equipment manufacturer (OEM) sometimes provide different product recommendations based on operating environment temperature for a given equipment. This product cross reference guide will list such recommendations based on OEM guidelines. Some OEM recommended viscosity pertaining to a specific temperature range may not be available from AMSOIL.

However, AMSOIL products recommended for another temperature range can be safely used because AMSOIL synthetic lubricants are engineered to provide exceptional performance for significantly broader temperature range when compared to conventional & or other brand synthetic oils. For more information on a lubricants cold temperature performance; please refer to "Pour Point" from "Technical Properties" table located at the bottom of each lubricant product page hide.
Last Updated This product cross reference guide for 1990 Buick Reatta engine code [C] was last updated on 7th August 2018 hide.
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  1. Engine Oil

    Grade 1  »  API*
    Above -18C  »  10W-30
    Above 4C  »  30 [1]
    All TEMPS  »  5W-30
  2. Automatic Transmission

  3. Power Steering Fluid

    Power Steering Fluid  »  PS003

    Power Steering Fluid (PSFCN)
  4. Brake Fluid

    Brake Fluid  »  HB

    DOT 3 and 4 Brake Fluid (BFLVCN) [3]
  5. Lubricants & Fluids Comments  »  [*]

    [1] Use only if the other recommended viscosities are not
    available.
    [2] This specification has been updated from Dexron II or III to
    Dexron VI per a Technical Service Bulletin from the
    manufacturer
    [3] Hydraulic Brake Fluid, DOT 3. Original recommendation
    P/N 12377967 has been replaced by P/N 19299818.

  6. Capacities (Drive Train Fluids)

    Engine, with filter  »  4.3 liters [1]
    Cooling System, Initial Fill  »  12.5 liters
    Passenger Car & Light Truck Antifreeze & Coolant
    AMSOIL Antifreeze and Engine Coolant
    Automatic Transmission, THM440-T4 Initial Fill  »  5.7 liters
    Automatic Transmission, Total Fill
    4 speed THM440-T4  »  10.4 liters
    ANTPC ANT
    Capacities Comments
    [1] After refill check oil level.
  7. Chassis Lubrication

  8. Torque Specifications

    Oil Drain Plug  »  18 ft/lbs

Close Panels

  1. Filters: Oil, Air, Cabin, Fuel, Transmission, Hydraulic & Crankcase

    Oil Filter Absolute Efficiency Oil Filter (EA15K29)  
    Oil Filter WIX 51040 Oil Filter  
    Air Filter WIX 46139 Air Filter  
    Fuel Filter WIX 33199 Fuel Filter  
    Transmission Filter WIX 58942 Auto Tran Filter  
  2. Gasoline Engine Fuel Additives

    Dominator Octane Boost (AOB)
    AOB Dominator Octane Boost (AOB)

    Maximizes power and improves performance in all two-cycle and four-cycle gasoline engines. Reduces engine knock, improves ignition and engine response, helps fuel burn cleaner and inhibits corrosion. Recommended for off-road and racing use. Packag...

    Gasoline Stabilizer (AST)
    AST Gasoline Stabilizer (AST)

    AMSOIL Gasoline Stabilizer (AST) reduces the oxidation process that occurs when fuel is stored for extended periods, improving performance, extending equipment life and decreasing maintenance expenses. Package sizes include: 16-oz. Bottle ...

    P.I Performance Improver (API)
    API P.I Performance Improver (API)

    P.i. improves fuel mileage an average of 2.3% and up to 5.7%. Reduces emissions such as hydrocarbons (HC) up to 15%, carbon monoxide (CO) up to 26% and nitrous oxides (NOx) up to 17%. Restores power and performance. Reduces the need for costly higher...

Close Panels

ASL 5W-30 Signature Series Synthetic Motor Oil (ASL)

The Top Tier of AMSOIL Synthetic Motor Oil. AMSOIL Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. Engineered for enthusiasts seeking maximum protection and performance. Precision-f...
XLF 5W-30 Extended Life Synthetic Motor Oil (XLF)

AMSOIL XL Synthetic Motor Oil is the choice for those who want to do something extra for their vehicle. Its boosted formulation delivers extra cleaning power, outstanding wear control, excellent high and low temperature protection and exceptional fue...
OEF 5W-30 OE Series Synthetic Motor Oil (OEF)

OE Synthetic Motor Oil is for mechanics and drivers seeking peace of mind protection and exceptional value in synthetic motor oil. It delivers 100 percent synthetic engine protection for advanced automotive technology, including turbochargers and dir...
ATL Signature Series Fuel-Efficient Synthetic ATF

A fuel efficient automatic transmission fluid recommended for GM, Ford and Toyota transmissions where lighter viscosity oil is required. Provides the same excellent protection and performance as AMSOIL Signature Series Multi-Vehicle ATF. Recommended ...
OTL OE Series Fuel-Efficient Synthetic ATF

AMSOIL OE Synthetic Automatic Transmission Fluid provides passenger-car/light-truck transmissions excellent wear protection, sludge resistance and extreme-temperature performance throughout original equipment manufacturer (OEM)-recommended drain inte...
BFLV DOT 3 and 4 Synthetic Brake Fluid (BFLV)

*** This item is available for US customers only *** Brake fluid acts as a hydraulic fluid, transferring power and lubricating brake system components while also preventing corrosion. It must contend with extreme heat and the inevitable moi...
PSF Multi-Vehicle Synthetic Power Steering Fluid (PSF)

AMSOIL Multi-Vehicle Synthetic Power Steering Fluid provides excellent wear protection. Its synthetic formulation delivers better lubricity and reduced friction, resulting in cooler operating temperatures, longer component life and quieter operation....
GLC Synthetic Multi-Purpose Grease NLGI #2 (GLC)

AMSOIL Synthetic Multi-Purpose Grease is qualified against the highest grease standards and designed for multiple-use applications. Composed of premium-quality synthetic base oils and calcium sulfonate complex thickeners, Multi-Purpose Grease provide...
GWR Synthetic Water Resistant Grease NLGI#2 (GWR)

Superior Lubrication and Protection in Automotive and Industrial Applications With Extensive Exposure to Water Package sizes include: 3-oz. Cartridges (not sold individually, comes in a pack of 3) 3-oz. Cartridges (case of 10) 14-oz. Cartri...
GRG DOMINATOR Synthetic Racing Grease (GRG)

Exceptional High-Speed/High-Temperature Performance. AMSOIL DOMINATOR® Synthetic Racing Grease is engineered to protect high-performance bearings and chassis components in racing applications operated on snow, dirt, water or track. Package siz...
ANTPC Passenger Vehicle Antifreeze (ANTPC)

Ethylene Glycol 50/50 Pre-Mix Formulation AMSOIL Passenger Car/Light Truck Antifreeze & Coolant provides superior heat transfer and excellent protection against corrosion, freezing and boilover. It provides maximum protection in extreme temper...
ANT Antifreeze and Engine Coolant (ANT)

AMSOIL Antifreeze & Coolant (ANT) is a low-toxicity propylene glycol antifreeze formulated to provide benefits far beyond those found in today's conventional antifreeze and coolant products. This revolutionary formulation provides maximum antifre...
amsoil oil filter AMSOIL Ea Oil Filters

AMSOIL Ea Oil Filters feature synthetic nanofiber technology for maximum efficiency. Guaranteed for up to 15,000 miles or up to 25,000 miles, depending on application, when used with AMSOIL synthetic motor oil.
wix oil filter WIX Automotive, Light Truck & Racing Oil Filters

WIX Oil filters are made with full metal base plate for superior strength at the double seal & also feature a silicone anti-drainback valve. Glass enhanced media in WIX oil filters offers greater efficiency, capturing more 10 to 12 micron sized particles than other cellulose or synthetic blend medias.

Maintenance Schedule as Provided by OEM Documentation

Distance:
7,500 miles (12,000 km)
Action:
Torque
Item:
Throttle body
Interval in Month(s):
12
Labor Units:
0.05
Parts Units:
0
Drive Type:
ALL
Description: The large diameter valve used to control the volume of incoming air to the engine.
Distance:
7,500 miles (12,000 km)
Action:
Lubricate
Item:
Chassis
Interval in Month(s):
12
Labor Units:
0.2
Parts Units:
0
Drive Type:
ALL
Description: The frame of a vehicle to which the body attaches.
Distance:
7,500 miles (12,000 km)
Action:
Inspect/rotate
Item:
Wheels & tires
Interval in Month(s):
0
Labor Units:
0.3
Parts Units:
0
Drive Type:
ALL
Description: A circular frame of hard material that may be solid or partly solid, is capable of turning on an axle, and holds the rubber cushion that contains compressed air.
Distance:
7,500 miles (12,000 km)
Action:
Change
Item:
Engine oil
Interval in Month(s):
12
Labor Units:
0.18
Parts Units:
4.5
Drive Type:
ALL
Description: A substance that lubricates and cools the moving parts of the engine and reduces corrosion and the formation of rust.
Distance:
7,500 miles (12,000 km)
Action:
Replace
Item:
Oil filter
Interval in Month(s):
12
Labor Units:
0.1
Parts Units:
1
Drive Type:
ALL
Description: A cartridge-filled canister placed in an engine's lubricating system to strain dirt and abrasive materials out of the oil.
Distance:
22,500 miles (36,000 km)
Action:
Inspect/rotate
Item:
Wheels & tires
Interval in Month(s):
0
Labor Units:
0.3
Parts Units:
0
Drive Type:
ALL
Description: A circular frame of hard material that may be solid or partly solid, is capable of turning on an axle, and holds the rubber cushion that contains compressed air.
Distance:
30,000 miles (48,000 km)
Action:
Inspect
Item:
Drive belt(s)
Interval in Month(s):
0
Labor Units:
0.03
Parts Units:
0
Drive Type:
ALL
Description: A belt that transfers the rotation of the engine through the crankshaft pulley to drive various devices, such as the alternator, water pump, air conditioning compressor or power steering pump.
Distance:
30,000 miles (48,000 km)
Action:
Inspect
Item:
Fuel tank, cap & lines
Interval in Month(s):
0
Labor Units:
0.05
Parts Units:
0
Drive Type:
ALL
Description: A reservoir for the vehicle's fuel.
Distance:
30,000 miles (48,000 km)
Action:
Inspect
Item:
Spark plug wires
Interval in Month(s):
0
Labor Units:
0.05
Parts Units:
0
Drive Type:
ALL
Description: Cables that carry a high-voltage electrical charge the spark plug(s).
Distance:
30,000 miles (48,000 km)
Action:
Inspect
Item:
EGR system
Interval in Month(s):
30
Labor Units:
0.1
Parts Units:
0
Drive Type:
ALL
Description: Exhaust Gas Recirculation system. A device that redirects a small amount of exhaust to the engine intake in an effort to lower combustion temperature and reduce the emission of nitrogen oxide.
Distance:
30,000 miles (48,000 km)
Action:
Inspect
Item:
PCV valve
Interval in Month(s):
30
Labor Units:
0.05
Parts Units:
0
Drive Type:
ALL
Description: Positive Crankcase Ventilation valve, an emissions related device that allows venting of combustion gases from the crankcase to the intake system rather than the atmosphere.
Distance:
30,000 miles (48,000 km)
Action:
Replace
Item:
Air filter
Interval in Month(s):
0
Labor Units:
0.2
Parts Units:
1
Drive Type:
ALL
Description: A device that filters incoming air fed to the engine.
Distance:
30,000 miles (48,000 km)
Action:
Replace
Item:
Spark plugs
Interval in Month(s):
0
Labor Units:
1.1
Parts Units:
6
Drive Type:
ALL
Description: Cables that carry a high-voltage electrical charge from the distributor cap or ignition coils to the spark plugs.
Distance:
30,000 miles (48,000 km)
Action:
Flush/replace
Item:
Coolant
Interval in Month(s):
24
Labor Units:
0.7
Parts Units:
1.5
Drive Type:
ALL
Description: Also known as "antifreeze." A mixture of water and ethylene glycol that has both a higher boiling point and a lower freezing point than plain water.
Distance:
37,500 miles (60,000 km)
Action:
Inspect/rotate
Item:
Wheels & tires
Interval in Month(s):
0
Labor Units:
0.3
Parts Units:
0
Drive Type:
ALL
Description: A circular frame of hard material that may be solid or partly solid, is capable of turning on an axle, and holds the rubber cushion that contains compressed air.
Distance:
100,000 miles (160,000 km)
Action:
Change
Item:
Automatic transmission fluid
Interval in Month(s):
100
Labor Units:
0.5
Parts Units:
5.4
Drive Type:
ALL
Description: The fluid used for lubricating and cooling an automatic transmission.
Distance:
100,000 miles (160,000 km)
Action:
Replace
Item:
Automatic transmission filter(s)
Interval in Month(s):
100
Labor Units:
0.3
Parts Units:
1
Drive Type:
ALL
Description: A component in most automatic transmissions that is fitted over the fluid intake, usually in the pan, that prevents debris and other contaminants from circulating throughout the transmission's inner workings and potentially causing unnecessary wear or damage. Some transmissions use a reusable metal or nylon mesh-type screen in place of a disposable filter.

Service Bulletin as Provided by OEM & NHTSA

Sorry no Service Bulletin found for this vehicle

Recall Data Provided by NHTSA

#
1
Make(s):
BUICK
Model(s):
REATTA
Year(s):
1990
Manufacturer:
GENERAL MOTORS CORP.
NHTSA ID:
90V031000
Recall Date:
n/a
Units Affected:
857

Affected Component: Air bags:frontal:sensor/control module.

Summary: The forward sensor for the air bag may have been incorrectly constructed with part of the wiring harness to the sensor reversed. .

Conequence: The reversal of the wires could cause delay in the deployment of the air bag and increase the severity of the of injury to an unbelted driver in an accident. .

Remedy: Replace forward discriminating sensor as necessary. .

Notes: System: air bag impact sensor; fmvss 208. Vehicle description: passenger cars. .

#
2
Make(s):
BUICK, CADILLAC, OLDSMOBILE
Model(s):
ELDORADO, REATTA, RIVIERA, SEVILLE, TORONADO
Year(s):
1990
Manufacturer:
GENERAL MOTORS CORP.
NHTSA ID:
90V164000
Recall Date:
n/a
Units Affected:
63,964

Affected Component: Power train:automatic transmission:lever and linkage:floor shift.

Summary: Transaxle shift control cable may disengage from the from the floor shift control with loss of gear indicator reference and shift selector operation. .

Conequence: Driver would not be able to determine actual gearposition the transaxle is in, which could result in unexpected vehicle movementand an accident without prior warning. .

Remedy: Install a transaxle shift control cable retaining clip to prevent cable disengagement. .

Notes: System: transaxle; shift control cable. Vehicle description: passenger cars. .

#
3
Make(s):
BUICK, CADILLAC, OLDSMOBILE
Model(s):
88, 98, DEVILLE, ELDORADO, REATTA, RIVIERA, SEVILLE, TORONADO
Year(s):
1990
Manufacturer:
GENERAL MOTORS CORP.
NHTSA ID:
90E043004
Recall Date:
n/a
Units Affected:
39

Affected Component: Air bags:frontal.

Summary: Threaded inflator components may have been damaged during assembly which may allow components to separate when inflator receives a signal to deploy the air bag. .

Conequence: Inflator component separation allows hot combustion gasesto escape into the passenger compartment which could result in injuries to vehicle occupants. .

Remedy: Replace air bag modules containing potentially defective inflators. .

Notes: Note: this campaign was initiated by trw, inc. , manufacturer of the air bag module system: air bag modules. Vehicle description: passenger cars equipped with driver side supplemental airbag modules. .

#
4
Make(s):
BUICK
Model(s):
REATTA, RIVIERA
Year(s):
1990
Manufacturer:
GENERAL MOTORS CORP.
NHTSA ID:
91V158000
Recall Date:
n/a
Units Affected:
18,904

Affected Component: Service brakes, hydraulic:switches:brake warning.

Summary: Brake indicator light may not light when ignition is in the "on" position, the parking brake is applied, and the shift selector is in the park or neutral gear range. .

Conequence: Vehicles would not meet the requirements of fmvss 101and 105. .

Remedy: Replace the prom in the body computer module to prevent this condition from occurring. .

Notes: System: control displays; fmvss 101 and 105. Vehicle description: passenger cars. .

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Blog Title: World's Best Oils & Filters for 1990 BUICK REATTA 3.8L 6-cyl Engine Code [C]
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