Mazda3 Forums : The #1 Mazda 3 Forum - View Single Post - Oil Consumption?
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post #4 of (permalink) Old 10-27-2017, 08:51 AM
r60man
Moped Rider
 
Join Date: Mar 2006
Location: Robesonia, PA
Posts: 23
Most likely it is the Positive crankcase vent (PCV). Typically lasts about 100K then the engines suck oil, without burning it. The part itself is not expensive but it is not an easy job. Dealerships will do it for about $250 - 300 but call and get that in writing first.

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