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November 10, 2020 Service bulletin

Some customers may complain about high engine oil consumption

Mazda technical service bulletin MT-005-20 for 2004-2018 Mazda MAZDA3, 2013-2021 Mazda CX-5 and 2003-2021 Mazda MAZDA6 and others.

Bulletin number
MT-005-20
Component
Engine and engine cooling
Summary
Some customers may complain about high engine oil consumption. Before attempting any repairs, verify the complaint by using the guideline below to determine if an engine repair is necessary: Engine Oil Consumption Inspection Guideline 1. Record the vehicle mileage. 2. Engine at normal operating temperature, top off engine oil level to the full mark on the dipstick. 3. Ask the customer to return to the dealer after 1200 miles to recheck the engine oil level. 4. After 1200 miles, engine at normal operating temperature, check the engine oil level on the dipstick. 5. Is the engine oil level above the low mark on the dipstick?  Yes - No repair is necessary.  No - Proceed to MGSS online or Workshop Manual (section 01-03 NO. 16 HIGH OIL CONSUMPTION/LEAKAGE).

Owners of these vehicles have filed 1,956 complaints in the engine category.

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