Mazda CX-9 Owners Manual: Engine Oil

NOTE Changing the engine oil should be performed by an Authorized Mazda Dealer.

Refer to Introduction for owner's responsibility in protecting your investment.

Recommended Oil

U.S.A., Canada, and Puerto Rico

Use SAE 5W-30 engine oil.

Mazda Genuine Oil is used in your Mazda vehicle. Mazda Genuine 5W-30 Oil is required to achieve optimum fuel economy.

For maintenance service, Mazda recommends Mazda Genuine Parts and Castrol (U.S.A. only)

Only use SAE 5W-30 oil "Certified For Gasoline Engines" by the American Petroleum Institute (API).

Oil with this trademark symbol conforms to the current engine and emission system protection standards and fuel economy requirements of the International Lubricant Standardization and Approval Committee (ILSAC), comprised of U.S. and Japanese automobile manufacturers.

Except U.S.A., Canada, and Puerto Rico

Use SAE 5W-30 engine oil.

Oil container labels provide important information.

A chief contribution this type of oil makes to fuel economy is reducing the amount of fuel necessary to overcome engine friction.

For maintenance service, Mazda recommends Mazda Genuine Parts and Castrol (Mexico only).

(Mexico) Use SAE 5W-30 engine oil. If SAE 5W-30 engine oil is not available, use SAE 0W-30 or SAE 10W-30 engine oil.

The quality designation SM or SN, or ILSAC must be on the label.

Vehicle Engine Control Unit Reset Procedure

After replacing the engine oil, it is recommended to have a repair shop such as an Authorized Mazda Dealer perform the initialization (engine oil data resetting) of the recorded value. If the value recorded by the computer is not initialized, the wrench indicator light may not turn off or it may turn on earlier than normal.

Inspecting Engine Oil Level

1. Be sure the vehicle is on a level surface.

2. Warm up the engine to normal operating temperature.

3. Turn it off and wait at least 5 minutes for the oil to return to the oil pan.

4. Pull out the dipstick, wipe it clean, and reinsert it fully.

5. Pull it out again and examine the level.

The level is normal if it is between the MIN and MAX marks.

If it is near or below MIN, add enough oil to bring the level to MAX.

CAUTION Do not overfill the engine oil. This may cause engine damage.

6. Make sure the O-ring on the dipstick is positioned properly before reinserting the dipstick.

7. Reinsert the dipstick fully.