Would having a problem with your manual transmission, effect my MPG on my 03 Subaru WRX?

Killa Drew

New member
I notice im getting around 20MPG street and 23MPG highway in my 03 Subaru WRX Sports wagon with the 2 L. Engine. I was wondering if my messed up Syncros in my manual transmission would be causing it to be so low? what is the average MPG for my Car as well???
 
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