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Author Topic: Diagnosing Poor MPG  (Read 1799 times)

Stephen S.

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Re: Diagnosing Poor MPG
« Reply #60 on: October 08, 2017, 02:37:51 PM »
I like the new readouts that vehicles have for performance, mileage, and such. Most vehicles on the road these days have this info available from the main computer. They just don't have a handy display. To get the readouts in my 1999 Chevy 3500 Winnebago I bought the UltraGauge dongle. The screen I set as primary on my smartphone has both instant and average fuel mileage gauges, along with RPMs and actual coolant temp (preferred over the idiot light).

In the hills I watch as the instant MPG goes from 0.5 to 40 (pegged), then watch the average settle down to around 9.2 or so during a long trip.

The secondary screen has dials for engine load, RPM, coolant, and instant MPG. I use this to train myself to feel when the RV is doing its best in various traffic and terrain.

[edit] There is the added bonus of any codes from the system (flashing engine light) are displayed in easy to understand sentences.
« Last Edit: October 08, 2017, 02:40:00 PM by Stephen S. »
Stephen S.
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'99 Winnebago Chalet
2002 VW Beetle
2007 Yamaha TW200
Home town: Mableton, GA

ArdraF

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  • Posts: 9780
Re: Diagnosing Poor MPG
« Reply #61 on: October 08, 2017, 05:29:20 PM »
We've used a Silverleaf for quite a few years and like being able to see how the engine and transmission are functioning.  We usually keep six items on the display with engine coolant temperature being one of them so we can see how hot it's getting when ascending our western mountains.  We also like that it shows what gear we're in because that was dropped by Cummins for a few years.

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