2006 Mazda RX-8 Oil Type & Capacity
The 2006 Mazda RX-8 takes 5W-20 motor oil — 3.7 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-20 — 3.7 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Shinka, 1.3 3 | API - SL or ILSAC, SAE 5W-20 Engine Oil | 3.70 QTS. | 3.50 QTS. | — |
| Shinka, 1.3 N, RC4AEL | API - SL or ILSAC, SAE 5W-20 Engine Oil | 3.70 QTS. | 3.50 QTS. | — |
| Shinka, 1.3 N, SJ6AEL | API - SL or ILSAC, SAE 5W-20 Engine Oil | 3.70 QTS. | 3.50 QTS. | — |
| Sport, 1.3 3 | API - SL or ILSAC, SAE 5W-20 Engine Oil | 3.70 QTS. | 3.50 QTS. | — |
| Sport, 1.3 N, RC4AEL | API - SL or ILSAC, SAE 5W-20 Engine Oil | 3.70 QTS. | 3.50 QTS. | — |
| Sport, 1.3 N, SJ6AEL | API - SL or ILSAC, SAE 5W-20 Engine Oil | 3.70 QTS. | 3.50 QTS. | — |
Buy the right oil
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More specs & repair guides for your RX-8
2006 Mazda RX-8 factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
10.4 quarts (9.84 L). FL22 type engine coolant concentration is factory adjusted. Use the product as it is without diluting it. Except FL22 type engine coolant: Above 3Deg.F use: 35% Antifreeze solution and 65% demineralized water, above -15Deg.F use: 45% Antifreeze solution and 55% demineralized water, above -40Deg.F use: 55% Antifreeze solution and 45% demineralized water.
Frequently asked questions
What type of oil does a 2006 Mazda RX-8 take?
The 2006 Mazda RX-8 takes 5W-20 motor oil (API - SL or ILSAC, SAE 5W-20 Engine Oil), per the factory service manual.
How much oil does a 2006 Mazda RX-8 take?
The 2006 Mazda RX-8 holds 3.7 quarts with a filter change, or 3.5 quarts without changing the filter.
Can I use synthetic oil in my 2006 Mazda RX-8?
Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2006 Mazda RX-8. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.