Air filter swap, MPG sucks really bad.

[gpracer1]

Take the MAF out and clean it with MAF cleaner spray, put it back together with the original air filter, check for air leaks, drive and report back.

 

[No Tyme]

I shy away from any oil covered air filters. Installed an AEM oil-less air filter a month back on my 13 Avalanche and seen a slight increase in fuel mileage.