Reducing Windshield Reflection of an Auto Meter 9105 ecometer Fuel Consumption Gauge Display

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The Auto Meter 9105 ecometer Fuel Consumption Gauge works great but when driving at night I started to experience a slightly distracting problem. A reflection of the guage’s display was very visible higher up the windshield. This was probably aggravated by the fact that I have it placed directly on my dash, which curves up and thus causes the guage to be at more of an angle than if it was sitting flat.

I’ve managed to reduce the amount that is reflected, and could eliminate it further with a small modification, by building an extension of the guage’s hood. I lucked out and was able to find some black vinyl just sitting around (I originally asked a friend if he had some black construction paper but he had something better – vinyl), which I affixed to the hood of the guage with electrical tape to extend it out. This little trick seems to have been a significant improvement when driving at night.

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Using an Auto Meter 9105 Ecometer to Improve Fuel Economy of a 2008 Chevy Impala

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Back in December my commute to work changed from about 15-20 minutes one way to one hour to an hour and fifteen minutes. This significant addition of mileage drove me (no pun intended) to make minor modifications to my vehicle and driving habits to improve my fuel economy. In the beginning I used my vehicle’s built-in Instant MPG data to adjust my coasting and acceleration.

This small move did show an improvement in fuel economy but the digital guage isn’t well placed for frequent checks. I decided to purchase something that was much more obvious as it could be mounted directly onto my dash.

I’ve been using anĀ Auto Meter 9105 ecometer Fuel Consumption Gauge, which costs around $100, and connects directly to the OBD-II port of my vehicle. Not only does it present the data in a much easier format to quickly glance at but I’ve also discovered that the referesh of the data is much faster than that of the built-in guage.

I’d prefer that the display could be dimmed significantly but otherwise it’s nearly perfect. If I’m applying several basic hypermiling habits I can indeed improve fuel economy. My vehicle’s highest MPG rating (highway) is 29 MPG but I’ve been able to achieve 30.29 MPG once and most of the time I hit between 26 and 28 MPG unless I’ve had a lot of in-city driving in my car. I have more MPG data from this year that I may share in a later post.

The guage by itself does nothing to improve fuel economy but it provides the ability to make driving decisions quickly, potentially saving fuel.