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Discussion Starter · #1 · (Edited)
My 2010 Malibu check engine light came on a while ago but recently the gas mileage dramatically drop to 11 mpg and there is a mild burnt oil smell. I don't drive the car so much only 2 miles a day and my oil life system shows that the oil life is 28%.any thoughts? BTW it has a 3.5 v6.
 

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2011 Malibu LTZ 3.6L V6 Red Jewel Tintcoat
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Before it dropped like that, was it closer to 20, 25, or ... ?

With the CEL illuminated, get all of the codes read, not just the P codes. There are also B, C, and U codes.
 
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