Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

NO.16 HIGH OIL CONSUMPTION/LEAKAGE DIAGNOSTIC PROCEDURE

STEP	INSPECTION	RESULTS	ACTION
1	Inspect for the following: External leakage (lubrication system parts and their joints.) Proper dipstick Proper engine oil viscosity Damaged and/or poor installation of air cleaner element Are all the items normal?	Yes	Go to the next step.
1		No	Service if necessary. Repeat Step 1.
2	Perform the metering oil pump control inspection. (See METERING OIL PUMP CONTROL INSPECTION .) Does the metering oil pump control properly?	Yes	Overhaul the engine and repair or replace the malfunctioning parts.
2		No	Repair or replace the malfunctioning parts, according to the metering oil pump control inspection results.
3	Verify test results. If normal, return to the diagnostic index to service any additional symptoms. If the malfunction remains, inspect the related Service Bulletins and/or the On-line Repair Information and perform the repair or diagnosis.