1998 Mazda Millenia Oil Type & Capacity
The 1998 Mazda Millenia oil type depends on the engine: the Base, 2.5 takes 5W-30 (4.2 quarts with filter); the Base, 2.5 1 takes 5W-30 (4.2 quarts with filter); the L takes 5W-30 (4.2 quarts with filter); the S takes 5W-30 (4.3 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- Base, 2.5: 5W-30, 4.2 quarts with filter
- Base, 2.5 1: 5W-30, 4.2 quarts with filter
- L: 5W-30, 4.2 quarts with filter
- S: 5W-30, 4.3 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, 2.5 — 2.5L Eng | API - SAE 5W-30 (Below -20Deg.F to 35Deg.F), 10W-30 (Below -10Deg.F to Above 120Deg.F) | 4.20 QTS. | 3.90 QTS. | — |
| Base, 2.5 1 — 2.5L Eng | API - SAE 5W-30 (Below -20Deg.F to 35Deg.F), 10W-30 (Below -10Deg.F to Above 120Deg.F) | 4.20 QTS. | 3.90 QTS. | — |
| L — 2.5L Eng | API - SAE 5W-30 (Below -20Deg.F to 35Deg.F), 10W-30 (Below -10Deg.F to Above 120Deg.F) | 4.20 QTS. | 3.90 QTS. | — |
| S — 2.3L Eng | API - SAE 5W-30 (Below -20Deg.F to 35Deg.F), 10W-30 (Below -10Deg.F to Above 120Deg.F) | 4.30 QTS. | 4.00 QTS. | — |
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More specs & repair guides for your Millenia
1998 Mazda Millenia factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
7.9 quarts (7.47 L) — MAZDA Premium Engine Coolant. Above 3Deg.F (-16Deg.C) use: 35/65 mixture of antifreeze and water, above -15Deg. F (26Deg.C) use: 45/55 mixture of antifreeze and water, above -40Deg.F (40Deg.C) use: 55/45 mixture of antifreeze and water.
Frequently asked questions
What type of oil does a 1998 Mazda Millenia take?
It depends on the engine: Base, 2.5 uses 5W-30; Base, 2.5 1 uses 5W-30; L uses 5W-30; S uses 5W-30.
How much oil does a 1998 Mazda Millenia take?
Capacity depends on the engine: Base, 2.5 holds 4.2 quarts with filter; Base, 2.5 1 holds 4.2 quarts with filter; L holds 4.2 quarts with filter; S holds 4.3 quarts with filter.
Can I use synthetic oil in my 1998 Mazda Millenia?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1998 Mazda Millenia. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.