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Old 01-07-2014, 08:09 PM   #1 (permalink)
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Mercedes 89 D - '89 Mercedes 300 E
90 day: 33.86 mpg (US)

Skodie - '09 Skoda Octavia TDI PD
90 day: 38.84 mpg (US)

1993 Mercedes 300D Turbo - '93 Mercedes Benz 300D Turbo W124
90 day: 26.19 mpg (US)

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90 day: 9.61 mpg (US)

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Thumbs up Smartphone app for fuel economy.

You have an old car, gasoline or diesel? So you have problems, like I do, to get an instrument to measure fuel economy in real time?

Try this application, DriveGain which is free. I am using it and it gave me a very reasonable fuel economy figure.

I use a 1993 Mercedes diesel turbo, 3000cc, which Mercedes Fórums members say will get 12.0 km/l at most. Well, according to the aplication, in the city I am getting about 8 km/l while in the road I got today 12.2 km/l (28.7 mpg), my first road trip since I installed it (30 km). I must say my car is in very good shape and I drove at 80 km/h as a mean.

This App uses only the GPS to calculate yr consumption. You need to enter your car specs, model, engine, fuel, and it calculates yr fuel economy. Mean fuel economy is very good, very reasonable. Instant fuel economy is an option, and works very logical.

In fact, the gps "knows" when you accelerate, when you go down slope, up a hill or flat, and how fast you are driving. With pure physics it estimates everything. Remarkable!

The App has the option to records all yr trips on the web site automatically. So you can review them later. This feature is very good.

Try it and you will be happy.


Mercedes 300 D turbo 1993

Last edited by oldbeaver; 01-07-2014 at 08:18 PM.. Reason: improving
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Old 01-13-2014, 06:08 AM   #2 (permalink)
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I would try it but it's not available for Android. Oh well.
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Old 01-13-2014, 08:11 AM   #3 (permalink)
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Shame no android version :-(
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Old 01-20-2014, 03:48 PM   #4 (permalink)
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I have to learn Android in the next few weeks so I was kind of thinking of writing something like this for free but of course Torque for android does this kind of thing too, and there is a free version.
[I]So long and thanks for all the fish.[/I]
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Old 01-21-2014, 04:16 AM   #5 (permalink)
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It's free so it's worth the money

Garmin have had this in their GPS systems for years. It only knows your speed. We all know you can't base economy on speed (and calculated rate of accel/decel). If you use BSFC it will kill your score, and it can't account for EOC, DWL or P&G. My GPS app always hovers around 12.2l/100km, while actual tank to tank varies from 10-13.

Even OBD scanners aren't accurate compared to actual pulses from the injectors.

If you're on this forum you probably already know more than a simple app can teach.

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diesel fuel economy, real time fuel economy, smartphone fuel economy

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