2007 AT Yaris Disappoints me

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These tips from Yaris are spot on. For me, I've achieved a 43 mpg average by doing all of those minus the spark plugs. I also DO NOT rev the engine over 2500 rpm. When I hit freeway speeds, I'm the one you hate doing EXACTLY the posted speed. This also saves me money by not having any speeding tickets as well! I'm lucky enough to have factory cruise control in mine as well. I also installed in-channel vent visors, so I can roll with the windows partially down.

The other thing I notices that was not here was the "big 3" upgrade. I had "significant" gains because of that modification. This was in part due to my conservative driving style but better electrical flow didn't hurt one bit. Here in a few months I'll be adding an aftermarket alternator as well just to make sure my juice is at 14 Volts consistantly.

I should note, I have added a LOT of sounddeadening to this car. The gas milage has not been affected so far that I have noted. When I say a LOT, I mean just that. I probably have the quietest Yaris in the world...I spent a good amount of money, and am going to continue in April with the roof, on deadening.