Quote:
Originally Posted by TGTIW
Oil issues and spun bearings unfortuantely are common with the 2.3 Mazda. It seems to be very hit or miss, some engines are great, some misteriously lose oil. Genreal concensous points to either the PCV or horrible plastic filter cartridge cap.
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Mostly it's due to very short piston skirts, compacted ring lands, and insufficient drain-backs in the pistons.
They are VERY sensitive to oil. You need to do it every 3000 miles (5000 synth). You need to ditch the 5W20 they chose for efficiency/low friction and go to a 5W30 or even 10W30. The best is the Mobil 1 "High Mileage" 10W30 in Summer. Not the Dexos or Extended Interval version, the formula specifically for high-mileage cars.