1999 Pontiac Grand Am Oil Type & Capacity
The 1999 Pontiac Grand Am oil type depends on the engine: the GT, 2D Coupe takes 5W-30 (4.5 quarts with filter); the GT, 4D Sedan, 2.4 T takes 5W-30 (4.0 quarts with filter); the GT, 4D Sedan, 3.4 E takes 5W-30 (4.5 quarts with filter); the SE, 2D Coupe, 2.4 T takes 5W-30 (4.0 quarts with filter); the SE, 2D Coupe, 3.4 E takes 5W-30 (4.5 quarts with filter); the SE, 4D Sedan, 2.4 T takes 5W-30 (4.0 quarts with filter); the SE, 4D Sedan, 3.4 E takes 5W-30 (4.5 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- GT, 2D Coupe: 5W-30, 4.5 quarts with filter
- GT, 4D Sedan, 2.4 T: 5W-30, 4.0 quarts with filter
- GT, 4D Sedan, 3.4 E: 5W-30, 4.5 quarts with filter
- SE, 2D Coupe, 2.4 T: 5W-30, 4.0 quarts with filter
- SE, 2D Coupe, 3.4 E: 5W-30, 4.5 quarts with filter
- SE, 4D Sedan, 2.4 T: 5W-30, 4.0 quarts with filter
- SE, 4D Sedan, 3.4 E: 5W-30, 4.5 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| GT, 2D Coupe — 3.4L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| GT, 4D Sedan, 2.4 T — 2.4L Eng | API - SAE 5W-30 | 4.00 QTS. | — | — |
| GT, 4D Sedan, 3.4 E — 3.4L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| SE, 2D Coupe, 2.4 T — 2.4L Eng | API - SAE 5W-30 | 4.00 QTS. | — | — |
| SE, 2D Coupe, 3.4 E — 3.4L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
| SE, 4D Sedan, 2.4 T — 2.4L Eng | API - SAE 5W-30 | 4.00 QTS. | — | — |
| SE, 4D Sedan, 3.4 E — 3.4L Eng | API - SAE 5W-30 | 4.50 QTS. | — | — |
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More specs & repair guides for your Grand Am
1999 Pontiac Grand Am factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
13.6 quarts (12.87 L) — 50/50 mixture of DEX-COOL and clean, drinkable water. After refill, the level must be checked. Add enough engine coolant so that the fluid is within the proper operating range.
Frequently asked questions
What type of oil does a 1999 Pontiac Grand Am take?
It depends on the engine: GT, 2D Coupe uses 5W-30; GT, 4D Sedan, 2.4 T uses 5W-30; GT, 4D Sedan, 3.4 E uses 5W-30; SE, 2D Coupe, 2.4 T uses 5W-30; SE, 2D Coupe, 3.4 E uses 5W-30; SE, 4D Sedan, 2.4 T uses 5W-30; SE, 4D Sedan, 3.4 E uses 5W-30.
How much oil does a 1999 Pontiac Grand Am take?
Capacity depends on the engine: GT, 2D Coupe holds 4.5 quarts with filter; GT, 4D Sedan, 2.4 T holds 4.0 quarts with filter; GT, 4D Sedan, 3.4 E holds 4.5 quarts with filter; SE, 2D Coupe, 2.4 T holds 4.0 quarts with filter; SE, 2D Coupe, 3.4 E holds 4.5 quarts with filter; SE, 4D Sedan, 2.4 T holds 4.0 quarts with filter; SE, 4D Sedan, 3.4 E holds 4.5 quarts with filter.
Can I use synthetic oil in my 1999 Pontiac Grand Am?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1999 Pontiac Grand Am. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.