1984 Pontiac Fiero Oil Type & Capacity
The 1984 Pontiac Fiero takes 5W-30 motor oil — 4.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 4.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, Automatic | SAE 5W-30 | 4.00 QTS. | — | API - SF/CC Energy Conserving. |
| Base, Standard, M19 | SAE 5W-30 | 4.00 QTS. | — | API - SF/CC Energy Conserving. |
| Base, Standard, MY8 | SAE 5W-30 | 4.00 QTS. | — | API - SF/CC Energy Conserving. |
| SE, Automatic | SAE 5W-30 | 4.00 QTS. | — | API - SF/CC Energy Conserving. |
| SE, Standard, M19 | SAE 5W-30 | 4.00 QTS. | — | API - SF/CC Energy Conserving. |
| SE, Standard, MY8 | SAE 5W-30 | 4.00 QTS. | — | API - SF/CC Energy Conserving. |
Buy the right oil
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More specs & repair guides for your Fiero
1984 Pontiac Fiero factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
14.0 quarts (13.24 L) — 50/50 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1984 Pontiac Fiero take?
The 1984 Pontiac Fiero takes 5W-30 motor oil (SAE 5W-30), per the factory service manual.
How much oil does a 1984 Pontiac Fiero take?
The 1984 Pontiac Fiero holds 4.0 quarts with a filter change.
Can I use synthetic oil in my 1984 Pontiac Fiero?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1984 Pontiac Fiero. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.