1984 Oldsmobile Cutlass Ciera Oil Type & Capacity

The 1984 Oldsmobile Cutlass Ciera oil type depends on the engine: the Base, 2D Coupe takes 10W-30 (4.0 quarts with filter); the Base, 4D Sedan takes 10W-30 (4.0 quarts with filter); the Brougham ES, 2D Coupe takes 10W-30 (4.0 quarts with filter); the Brougham ES, 4D Sedan takes 10W-30 (4.0 quarts with filter); the Brougham, 2D Coupe, 2.5 R takes 5W-30 (3.0 quarts with filter); the Brougham, 2D Coupe, 3.8 3 takes 10W-30 (4.0 quarts with filter); the Brougham, 2D Coupe, 4.3 T takes 10W-30 (6.5 quarts with filter); the Brougham, 4D Sedan, 2.5 R takes 5W-30 (3.0 quarts with filter); the Brougham, 4D Sedan, 3.8 3 takes 10W-30 (4.0 quarts with filter); the Brougham, 4D Sedan, 4.3 T takes 10W-30 (6.5 quarts with filter); the LS, 2D Coupe, 2.5 R takes 5W-30 (3.0 quarts with filter); the LS, 2D Coupe, 3.8 3 takes 10W-30 (4.0 quarts with filter); the LS, 2D Coupe, 4.3 T takes 10W-30 (6.5 quarts with filter); the LS, 4D Sedan, 2.5 R takes 5W-30 (3.0 quarts with filter); the LS, 4D Sedan, 3.8 3 takes 10W-30 (4.0 quarts with filter); the LS, 4D Sedan, 4.3 T takes 10W-30 (6.5 quarts with filter), per the factory service manual.

Factory-spec answer

It depends on the engine:

Oil capacity by engine

EngineOil Type (viscosity)Capacity w/ FilterCapacity w/o FilterNotes
Base, 2D Coupe — 3.8L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)4.00 QTS.
Base, 4D Sedan — 3.8L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)4.00 QTS.
Brougham ES, 2D Coupe — 3.8L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)4.00 QTS.
Brougham ES, 4D Sedan — 3.8L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)4.00 QTS.
Brougham, 2D Coupe, 2.5 R — 2.5L EngSAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F)3.00 QTS.
Brougham, 2D Coupe, 3.8 3 — 3.8L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)4.00 QTS.
Brougham, 2D Coupe, 4.3 T — 4.3L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)6.50 QTS.
Brougham, 4D Sedan, 2.5 R — 2.5L EngSAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F)3.00 QTS.
Brougham, 4D Sedan, 3.8 3 — 3.8L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)4.00 QTS.
Brougham, 4D Sedan, 4.3 T — 4.3L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)6.50 QTS.
LS, 2D Coupe, 2.5 R — 2.5L EngSAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F)3.00 QTS.
LS, 2D Coupe, 3.8 3 — 3.8L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)4.00 QTS.
LS, 2D Coupe, 4.3 T — 4.3L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)6.50 QTS.
LS, 4D Sedan, 2.5 R — 2.5L EngSAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 or 10W-40 (0Deg.F to Above 100Deg.F), 15W-40 (15Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), 30 (40Deg.F to Above 100Deg.F)3.00 QTS.
LS, 4D Sedan, 3.8 3 — 3.8L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)4.00 QTS.
LS, 4D Sedan, 4.3 T — 4.3L EngSAE 10W-30 (Below -20Deg.F to 60Deg.F), 15W-40 (15Deg.F to 70Deg.F), 30 (Preferred) (32Deg.F to Above100Deg.F)6.50 QTS.

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More specs & repair guides for your Cutlass Ciera

1984 Oldsmobile Cutlass Ciera factory service manualAll fluid capacities (transmission, coolant, brakes)

Powered by factory manual data from our partner site AllOEMManuals.com.

Coolant capacity

N/A (N/A) — 50/50 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.

Frequently asked questions

What type of oil does a 1984 Oldsmobile Cutlass Ciera take?

It depends on the engine: Base, 2D Coupe uses 10W-30; Base, 4D Sedan uses 10W-30; Brougham ES, 2D Coupe uses 10W-30; Brougham ES, 4D Sedan uses 10W-30; Brougham, 2D Coupe, 2.5 R uses 5W-30; Brougham, 2D Coupe, 3.8 3 uses 10W-30; Brougham, 2D Coupe, 4.3 T uses 10W-30; Brougham, 4D Sedan, 2.5 R uses 5W-30; Brougham, 4D Sedan, 3.8 3 uses 10W-30; Brougham, 4D Sedan, 4.3 T uses 10W-30; LS, 2D Coupe, 2.5 R uses 5W-30; LS, 2D Coupe, 3.8 3 uses 10W-30; LS, 2D Coupe, 4.3 T uses 10W-30; LS, 4D Sedan, 2.5 R uses 5W-30; LS, 4D Sedan, 3.8 3 uses 10W-30; LS, 4D Sedan, 4.3 T uses 10W-30.

How much oil does a 1984 Oldsmobile Cutlass Ciera take?

Capacity depends on the engine: Base, 2D Coupe holds 4.0 quarts with filter; Base, 4D Sedan holds 4.0 quarts with filter; Brougham ES, 2D Coupe holds 4.0 quarts with filter; Brougham ES, 4D Sedan holds 4.0 quarts with filter; Brougham, 2D Coupe, 2.5 R holds 3.0 quarts with filter; Brougham, 2D Coupe, 3.8 3 holds 4.0 quarts with filter; Brougham, 2D Coupe, 4.3 T holds 6.5 quarts with filter; Brougham, 4D Sedan, 2.5 R holds 3.0 quarts with filter; Brougham, 4D Sedan, 3.8 3 holds 4.0 quarts with filter; Brougham, 4D Sedan, 4.3 T holds 6.5 quarts with filter; LS, 2D Coupe, 2.5 R holds 3.0 quarts with filter; LS, 2D Coupe, 3.8 3 holds 4.0 quarts with filter; LS, 2D Coupe, 4.3 T holds 6.5 quarts with filter; LS, 4D Sedan, 2.5 R holds 3.0 quarts with filter; LS, 4D Sedan, 3.8 3 holds 4.0 quarts with filter; LS, 4D Sedan, 4.3 T holds 6.5 quarts with filter.

Can I use synthetic oil in my 1984 Oldsmobile Cutlass Ciera?

Yes. 10W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1984 Oldsmobile Cutlass Ciera. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.

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