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 qt with filter); the GT, 4D Sedan, 2.4 T takes 5W-30 (4.0 quarts qt with filter); the GT, 4D Sedan, 3.4 E takes 5W-30 (4.5 quarts qt with filter); the SE, 2D Coupe, 2.4 T takes 5W-30 (4.0 quarts qt with filter); the SE, 2D Coupe, 3.4 E takes 5W-30 (4.5 quarts qt with filter); the SE, 4D Sedan, 2.4 T takes 5W-30 (4.0 quarts qt with filter); the SE, 4D Sedan, 3.4 E takes 5W-30 (4.5 quarts qt 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 factory specs & repair guides for your Grand Am
🛞 1999 Pontiac Grand Am Tire Size & Pressure →🌧️ 1999 Pontiac Grand Am Wiper Blade Sizes →💡 1999 Pontiac Grand Am Light Bulb Sizes →📖 1999 Pontiac Grand Am Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network 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.
What is the oil capacity of a 1999 Pontiac Grand Am?
Oil 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.
How often should I change the oil in my 1999 Pontiac Grand Am?
Most 1999 Pontiac Grand Am owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Pontiac recommends intervals based on driving conditions, not just mileage.
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.