Wow 30 MPG to 36 MPG. city/highway combined.

[Korean_redneck]

Well.. Just got done with my Second Auto-RX , did tune up(changed all filters and fluids, plugs, wires.. etc.), Fuel injection treatment, cleaned my throttle body and repacked my wheel bearings. and my engine jumped 6 mpg. I calculated the average of 6 fuel fill ups. A/C on.

This is why taking care of your car is important.

 

[blupupher]

That is a pretty good increase.

 

[ediamiam]

too bad you can't quantify which fix was the most beneficial.