Originally Posted by Vic909
Sorry about that , just did the math my self always check my mpg , I was averaging 16 mpg for the longest time , now I'm back at 21/20 , but then again my air filter was dirty , probably why I got such a big increase
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Did you do anything else different? Studies have shown air filters don't make much of a difference at all, and a clogged one can have no impact or improve FE. It seems strange to have a 33% increase from that.
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