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MPG


cegarbage
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I filled up my car for the first time.  The tank represented all of "trip 1". According to trip 1, I was 123.2 MPG. But when I divide the miles by the gallons, it comes to 115.7. Is it normal to have a delta? If so, why?

On my first fill up, I realized that the dealer didn't fill it up all the way. When full, mine goes above the full line. I got mine with the guage right at the full line. That is probably part of it.

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  • 4 weeks later...

My VWs were usually spot on, but the Ford comes out optimistic for me as well.  The VW you could adjust, not so sure about the Ford.  One thing I've noticed is that it doesn't count remote start usage, which throws off the number quite a bit even if you don't use it much because the engine in the FFE isn't an efficient idler (it idles at 1500 when you start it).

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FFE isn't an efficient idler (it idles at 1500 when you start it).

 

It idles at 1500 to warm up. Since the engine is often rarely on, it has to get warm quickly. Like mentioned in another thread, if its not run frequently enough, it will run itself to "maintain the oil", it needs to burn off the condensation water in the oil pan that collects in the oil.

 

 

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It idles at 1500 to warm up. Since the engine is often rarely on, it has to get warm quickly. Like mentioned in another thread, if its not run frequently enough, it will run itself to "maintain the oil", it needs to burn off the condensation water in the oil pan that collects in the oil.

 

 

 

The warm up idle is the only idle relevant to my remote start scenario I was mentioning.  Because it does not seem to take remote start fuel usage into account.

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