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1940 Oldsmobile Series 90 Catalog and Classic Car Guide, Ratings and Features

Image of 1940 Oldsmobile Series 90, sourced from www.connorsmotorcar.com , Image Link.

Performance Metrics

Performance: +30
Handling: +35
Ride Comfort: +60

Fundamental Metrics

Safety: +20
Maintenance and Upkeep: +50
Restoration Difficulty: +40

Emotional Appeal

Looks: +70
Collectability: +60
Historical Significance: +50

MMP Rating

5.5 /10
Engine Specifications
Engine: Straight-8
Displacement: 257 cu in (4.2 L)
Horsepower: Estimated 110 hp
Torque: Information not available
Compression Ratio: 6.5:1
Ignition System: Battery and coil
Cooling System: Liquid-cooled
Performance Specifications
0-60 Time: Information not available
1/4 Mile Time: Information not available
Top Speed: Estimated 85 mph
Transmission and Drive
Drive Type: Rear-wheel drive
Transmission Type: 3-speed manual
Fuel and Efficiency
Fuel System Type: Carburetor
MPG: Information not available
Dimensions and Brakes
Brakes: Drum brakes
Wheelbase: 125 inches
Weight: Estimated 3,500 lbs

Note: Specifications for classic cars are given to the best of our ability, considering the limited and variant data available.

Unveiling the 1940 Oldsmobile Series 90: A Testament to Innovation

The 1940 Oldsmobile Series 90 stands as a monument to pre-war automotive excellence, a vehicle that seamlessly blended luxury with performance. Crafted by the venerable Oldsmobile Division of General Motors, this car emerged at a time when the world stood on the precipice of change. It was a period marked by an impending global conflict, yet simultaneously an era that witnessed the zenith of automotive design and technology before wartime production took precedence.

One particularly intriguing fact about the Series 90 is its introduction of the Hydra-Matic transmission in 1940, making it one of the first cars to offer drivers a fully automatic shifting experience—a feature that would revolutionize the automotive industry.

Design and Innovation: A Harmony of Form and Function

The exterior of the 1940 Oldsmobile Series 90 exuded elegance with its sweeping lines and pronounced fenders. Chrome accents highlighted its luxurious presence, while the iconic grille presented a bold face to onlookers. Inside, passengers were enveloped in opulence with plush seating and richly appointed details. The materials used within spoke of a commitment to quality, from the polished wood trim to the soft-touch fabrics.

Technologically, aside from its pioneering automatic transmission, the Series 90 boasted features like a radio, heater, and even a clock—luxuries at that time. Color options ranged from stately blacks and blues to more adventurous hues, with popular choices often reflecting the owner's personal status and style. The most iconic body style was arguably the four-door sedan, which offered both space and comfort for its occupants.

Historical Significance: Setting the Pace for Future Generations

The Oldsmobile Series 90's impact on automotive history cannot be overstated. Its adoption of automatic transmission paved the way for what would become an industry standard. This innovation not only set it apart from contemporaries but also signaled a shift towards greater accessibility and ease in driving—a legacy that endures to this day.

Performance and Handling: A Smooth Operator

Underneath its hood, the Series 90 housed a robust inline-eight engine that propelled it to impressive speeds for its time. While exact figures vary, top speed was reputedly around 85 mph—a notable feat in an era where roads and infrastructure were still catching up to automotive capabilities. Acceleration was smooth, thanks to the Hydra-Matic transmission easing drivers through gear changes.

The ride was described as nothing short of luxurious; bumps were absorbed with grace, leaving passengers undisturbed. Drivers often noted the quiet hum of the engine—a stark contrast to some of its noisier rivals—and how it contributed to an overall serene driving experience.

Ownership Experience: More Than Just A Car

The Series 90 found its place in various roles—from a reliable daily driver for affluent families to a dignified show car gracing events with its timeless elegance. Maintenance was straightforward for those familiar with pre-war technology, ensuring longevity with proper care.

Fun Facts: The Series 90's Unique Legacy

This classic vehicle has seen its share of limelight with rare editions sought after by collectors and celebrity ownerships adding to its allure. While not known for breaking speed records, it held records of another kind—sales achievements that helped cement Oldsmobile's reputation as a premium automaker.

Criticisms were few but did touch upon its size and fuel consumption—common points of contention for vehicles in this class during that era.

Collector's Information: A Prized Possession

Today, estimating how many Series 90s remain is challenging; however, production numbers suggest several thousand were made. Current values vary widely depending on condition and originality but can range from $20,000 for a well-maintained example to over $60,000 or more for pristine models or those with historical significance.

The market trend shows appreciation over time as enthusiasts recognize the significance and rarity of this pre-war masterpiece.

Conclusion: Celebrating Automotive Heritage

The 1940 Oldsmobile Series 90 is more than just a relic from another age; it's a celebration of innovation and luxury that set benchmarks for future generations. Its legacy is felt every time we enjoy the convenience of an automatic transmission or appreciate the quiet power under our fingertips—a true classic in every sense of the word.

1940 Oldsmobile Series 90 Catalog of Parts


1940 Oldsmobile Series 90 Transmission Vacuum Shift Grommet.  Used on rear side-BC 40 1940 Oldsmobile Series 90 Transmission Vacuum Shift Grommet. Used on rear side-BC 40Transmission Vacuum Shift Grommet. Used on rear side. 1-1/2" O.D., 3/8" I.D., 3/8" Thick. Each

1940 Oldsmobile Series 90 Front Bumper Arm Grommets-BG 74 1940 Oldsmobile Series 90 Front Bumper Arm Grommets-BG 74Front Bumper Arm Grommets. 2-1/8" wide X 5-3/8" long, with 1-3/4" long inner slot. Pair

1940 Oldsmobile Series 90 Rear Bumper Arm Grommets-BG 89 1940 Oldsmobile Series 90 Rear Bumper Arm Grommets-BG 89Rear Bumper Arm Grommets. 2-1/2" wide X 4-1/8" long, with 1-1/2" long inner slot. Pair

1940 Oldsmobile Series 90 Lower Inner A Frame Shaft Seal.  1-1/8 O.D., 5/16 thick-BN 23-A 1940 Oldsmobile Series 90 Lower Inner "A" Frame Shaft Seal. 1-1/8" O.D., 5/16" thick-BN 23-ALower Inner "A" Frame Shaft Seal. 1-1/8" O.D., 5/16" thick. Each

1940 Oldsmobile Series 90 Front Stabilizer Bar Bushing.  Fits rear on 1948-1956 Olds-BN 29 1940 Oldsmobile Series 90 Front Stabilizer Bar Bushing. Fits rear on 1948-1956 Olds-BN 29Front Stabilizer Bar Bushing. Fits rear on 1948-1956 Olds. 2" high. Each

1940 Oldsmobile Series 90 Clutch and Brake Pedal Pads (Black)-CB 40 1940 Oldsmobile Series 90 Clutch and Brake Pedal Pads (Black)-CB 40Clutch and Brake Pedal Pads (Black). 2-3/4" wide X 3-3/8" long. Pair

1940 Oldsmobile Series 90 Clutch and Brake Pedal Pads (Brown)-CB 40-A 1940 Oldsmobile Series 90 Clutch and Brake Pedal Pads (Brown)-CB 40-AClutch and Brake Pedal Pads (Brown). 2-3/4" wide X 3-3/8" long. Pair

1940 Oldsmobile Series 90 Clutch and Brake Pedal Pads 9Silver Gray)-CB 40-B 1940 Oldsmobile Series 90 Clutch and Brake Pedal Pads 9Silver Gray)-CB 40-BClutch and Brake Pedal Pads 9Silver Gray). 2-3/4" wide X 3-3/8" long. Pair

1940 Oldsmobile Series 90 Upper Door Hinge Post Bumper.  Held by screw-DB 60-A 1940 Oldsmobile Series 90 Upper Door Hinge Post Bumper. Held by screw-DB 60-AUpper Door Hinge Post Bumper. Held by screw. 7/8" diameter X 1/8" thick. Each


1940 Oldsmobile Series 90 Gravel Shields.  Flat without metal backing plates-FS 25 1940 Oldsmobile Series 90 Gravel Shields. Flat without metal backing plates-FS 25Gravel Shields. Flat without metal backing plates. Apply with contact cement. 16" long X 9" wide at top and 7-1/2" wide at bottom. Pair

1940 Oldsmobile Series 90 Gravel Shields and Narrow Body Section Gravel Shields-FS 25-26 1940 Oldsmobile Series 90 Gravel Shields and Narrow Body Section Gravel Shields-FS 25-26Gravel Shields and Narrow Body Section Gravel Shields. Gravel Shields: 16" long X 8-1/2" wide at top and 6-1/2" wide at bottom. Narrow Body Section: 14" long, with beaded edge extending 1" along top and bottom. Complete 4-piece set

1940 Oldsmobile Series 90 Narrow Body Section Gravel Shields-FS 26 1940 Oldsmobile Series 90 Narrow Body Section Gravel Shields-FS 26Narrow Body Section Gravel Shields. This part used on most models. 14" long, with beaded edge extending 1" along top and bottom. Pair

1940 Oldsmobile Series 90 Gas filler grommet-GF 27 1940 Oldsmobile Series 90 Gas filler grommet-GF 27Gas filler grommet. Fits some models of Buick, Oldsmobile and Pontiac. Check dimensions and part image. 2 in. ID; 3-5/8 in. OD. Dense black rubber. Each.


1940 Oldsmobile Series 90 Door, Hood and Trunk Bumper Cap for adjustment bolt-HA 5 1940 Oldsmobile Series 90 Door, Hood and Trunk Bumper Cap for adjustment bolt-HA 5Door, Hood and Trunk Bumper Cap for adjustment bolt. 7/8" diameter X 7/16" thick. Each


1940 Oldsmobile Series 90 Windshield and Rear Window Channel.  Used with 1/4 glass-LP 105 1940 Oldsmobile Series 90 Windshield and Rear Window Channel. Used with 1/4" glass-LP 105Windshield and Rear Window Channel. Used with 1/4" glass. Fits some models. Sold by the foot

1940 Oldsmobile Series 90 Door side seal. Same as LP 40-A, but for a heavier seal-LP 40 1940 Oldsmobile Series 90 Door side seal. Same as LP 40-A, but for a heavier seal-LP 40Door side seal. Same as LP 40-A, but for a heavier seal. Fits many domestic passenger cars and trucks. Used in Cobra kit cars as trunk weatherstrip. Per foot.

1940 Oldsmobile Series 90 Door side seal. Same as LP 40, but for a lighter seal-LP 40-A 1940 Oldsmobile Series 90 Door side seal. Same as LP 40, but for a lighter seal-LP 40-ADoor side seal. Same as LP 40, but for a lighter seal. Fits many domestic passenger cars and trucks. Universal seal for street rods and customs. Used in Cobra kit cars as door weatherstrip. Per foot.


1940 Oldsmobile Series 90 Door Ferrule Grommet. Made of black rubber-MP 546-H 1940 Oldsmobile Series 90 Door Ferrule Grommet. Made of black rubber-MP 546-HDoor Ferrule Grommet. Made of black rubber. Fits over your old steel door ferrule (also see WF 2006) 1-3/16" O.D. Each






1940 Oldsmobile Series 90 Door Lock Knob.  Brown.  1/2 diameter X 1 long X 1/8 hole-RP 303 1940 Oldsmobile Series 90 Door Lock Knob. Brown. 1/2" diameter X 1" long X 1/8" hole-RP 303Door Lock Knob. Brown. 1/2" diameter X 1" long X 1/8" hole. Each






1940 Oldsmobile Series 90 Front Door Window Adjustment Bumper Cushion-SB 70 1940 Oldsmobile Series 90 Front Door Window Adjustment Bumper Cushion-SB 70Front Door Window Adjustment Bumper Cushion. For "T" bolt in door. Four to six used per car. 11/16" X 1/4". Each

1940 Oldsmobile Series 90 Hood and door bumper. 1/4 in. high.  Fits 5/16 in. hole-SB 71 1940 Oldsmobile Series 90 Hood and door bumper. 1/4 in. high. Fits 5/16 in. hole-SB 71Hood and door bumper. 1/4 in. high. Fits 5/16 in. hole. Each.

1940 Oldsmobile Series 90 Firewall Grommet-SM 103 1940 Oldsmobile Series 90 Firewall Grommet-SM 103Firewall Grommet. For horn wire, throttle, speedometer cable, wiper pipe and temperature gauge. Each

1940 Oldsmobile Series 90 Speedometer Cable / Utility Grommet-SM 2 1940 Oldsmobile Series 90 Speedometer Cable / Utility Grommet-SM 2Speedometer Cable / Utility Grommet. Fits 3/4" to 13/16" hole. 3/16" center hole. Each


1940 Oldsmobile Series 90 Ignition cable grommet. 2 in. OD x 1/2 in. ID fits a 1.5 in-SM 33 1940 Oldsmobile Series 90 Ignition cable grommet. 2 in. OD x 1/2 in. ID fits a 1.5 in-SM 33Ignition cable grommet. 2 in. OD x 1/2 in. ID fits a 1.5 in. hole. Each.

1940 Oldsmobile Series 90 Firewall grommet for headlight and tail-light wires-SM 34 1940 Oldsmobile Series 90 Firewall grommet for headlight and tail-light wires-SM 34Firewall grommet for headlight and tail-light wires. Fits 11/16" hole. 5/16" I.D., 15/16" O.D. Each

1940 Oldsmobile Series 90 Special Purpose Grommet-SM 4 1940 Oldsmobile Series 90 Special Purpose Grommet-SM 4Special Purpose Grommet. For firewall, fuel gauge wire, horn wire, hood latch cable and fresh air cable. Fits 1/2" hole. 1/8" center hole. Each

1940 Oldsmobile Series 90 Speedometer Cable Firewall Grommet.  Fits 1-7/8 long hole-SM 47 1940 Oldsmobile Series 90 Speedometer Cable Firewall Grommet. Fits 1-7/8" long hole-SM 47Speedometer Cable Firewall Grommet. Fits 1-7/8" long hole. NOTE: Not used when car was factory equipped with windshield washers. (Fits some models) Each


1940 Oldsmobile Series 90 Hood Cable Grommet.  Fits 7/16 to 1/2 hole-SM 61 1940 Oldsmobile Series 90 Hood Cable Grommet. Fits 7/16" to 1/2" hole-SM 61Hood Cable Grommet. Fits 7/16" to 1/2" hole. 3/16" center hole. Each

1940 Oldsmobile Series 90 Choke Cable Grommet.  Fits 5/8 hole.  1/8 center hole-SM 62 1940 Oldsmobile Series 90 Choke Cable Grommet. Fits 5/8" hole. 1/8" center hole-SM 62Choke Cable Grommet. Fits 5/8" hole. 1/8" center hole. Each

1940 Oldsmobile Series 90 Firewall Grommet, for Convertibles.  For top of  vacuum hose-SM 63 1940 Oldsmobile Series 90 Firewall Grommet, for Convertibles. For top of vacuum hose-SM 63Firewall Grommet, for Convertibles. For top of vacuum hose. Fits 7/8" hole. 3/4" center hole. Each

1940 Oldsmobile Series 90 Special Purpose Grommet-SM 68 1940 Oldsmobile Series 90 Special Purpose Grommet-SM 68Special Purpose Grommet. For headlight wire loom through body. Each

1940 Oldsmobile Series 90 Firewall and Utility Grommet.  Fits 3/4 hole.  3/16 I.D-SM 8 1940 Oldsmobile Series 90 Firewall and Utility Grommet. Fits 3/4" hole. 3/16" I.D-SM 8Firewall and Utility Grommet. Fits 3/4" hole. 3/16" I.D. Each


1940 Oldsmobile Series 90 Trunk seal. '36-'40 GM coupes and convertibles only-TK 58-A/18 1940 Oldsmobile Series 90 Trunk seal. '36-'40 GM coupes and convertibles only-TK 58-A/18Trunk seal. '36-'40 GM coupes and convertibles only. Does not fit Buick models (order LP 58-L per foot). 3/4 in. W x 1/2 in. Thk x 18 ft. L. Each.

1940 Oldsmobile Series 90 Trunk Seal for Coupes and Convertibles Only-TK 58-B/18 1940 Oldsmobile Series 90 Trunk Seal for Coupes and Convertibles Only-TK 58-B/18Trunk Seal for Coupes and Convertibles Only. 1" wide X 1/2" thick. Each



1940 Oldsmobile Series 90 Flexible glass-run channel-WC 11-72 1940 Oldsmobile Series 90 Flexible glass-run channel-WC 11-72Flexible glass-run channel. Mohair lined, cloth covered with stainless steel bead. Used on side windows. 72 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned in two equal lengths to reduce overseas shipping costs.

1940 Oldsmobile Series 90 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-72 1940 Oldsmobile Series 90 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-72Rigid division-bar channel. Made with Zinc-plated bead. Used on lower side windows. 72 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned into two equal lengths to reduce overseas shipping costs.

1940 Oldsmobile Series 90 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-96 1940 Oldsmobile Series 90 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-96Rigid division-bar channel. Made with Zinc-plated bead. Used on lower side windows. 96 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned in two or three equal lengths to reduce overseas shipping costs.

1940 Oldsmobile Series 90 Rigid division-bar channel. Made with stainless steel bead-WC 2-72 1940 Oldsmobile Series 90 Rigid division-bar channel. Made with stainless steel bead-WC 2-72Rigid division-bar channel. Made with stainless steel bead. 72 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned into two equal lengths to reduce overseas shipping costs.

1940 Oldsmobile Series 90 Flexible sweeper. Made with stainless steel bead-WC 8-72 1940 Oldsmobile Series 90 Flexible sweeper. Made with stainless steel bead-WC 8-72Flexible sweeper. Made with stainless steel bead. Used on inner and outer beltlines. Also forms easily for use with sliding quarter windows. 72 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned into two equal lengths to reduce overseas shipping costs.

1940 Oldsmobile Series 90 Chrome Door Ferrule. To be used with MP 546-H. 1-1/16 O.D-WF 2006 1940 Oldsmobile Series 90 Chrome Door Ferrule. To be used with MP 546-H. 1-1/16" O.D-WF 2006Chrome Door Ferrule. To be used with MP 546-H. 1-1/16" O.D., 5/8" high. Fits most models. Each

1940 Oldsmobile Series 90 Fender Bolts.  For use with Fender Bolt Washers; WF 3001-WF 3000 1940 Oldsmobile Series 90 Fender Bolts. For use with Fender Bolt Washers; WF 3001-WF 3000Fender Bolts. For use with Fender Bolt Washers; WF 3001. Zinc Chromate plated, high strength. 1" X 5/16". Set of 25

1940 Oldsmobile Series 90 Fender Bolt Washers.  For use with Fender Bolts; WF 3000-WF 3001 1940 Oldsmobile Series 90 Fender Bolt Washers. For use with Fender Bolts; WF 3000-WF 3001Fender Bolt Washers. For use with Fender Bolts; WF 3000. High quality, cadmium plated. 1-1/4" O.D., 3/8" I.D. Set of 25



1940 Oldsmobile Series 90 Front Vent Window Seals.  Does not fit Convertible-WR 7315 1940 Oldsmobile Series 90 Front Vent Window Seals. Does not fit Convertible-WR 7315Front Vent Window Seals. Does not fit Convertible. Pair R&L



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For over 100 years, Metro Moulded Parts has been the pinnacle of quality in classic car restoration parts. Our commitment to precision and authenticity in every component ensures a perfect fit and an OEM-level appearance.

  • Expert Craftsmanship & Quality: Each part is a testament to our dedication to reliability and perfection, crafted from original designs and thoroughly tested.
  • Advanced Technology: We use cutting-edge techniques to create flawless, long-lasting parts that surpass others in performance.
  • SuperSoft Sponge – The Ultimate Door Seal: Not only are our door seals 30% softer than competitors', but they're also guaranteed to never leak. They effectively reduce wind and road noise, enhancing your classic car's comfort and driving experience.
  • Proudly American: Our parts are a product of American craftsmanship, made in the USA with a spirit of excellence and heritage.
  • Unrivaled Warranty: We back our products with a 30-year industry-leading warranty, a testament to our confidence in their quality.

Join us in preserving the legacy of classic cars with parts that are crafted for perfection, not just made.

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