I have noticed that my wagon's economy gauge is very "sluggish" to move in general compared to my 260E which responds to throttle very quickly.

I was wondering if this should point to anything as to my lack of decent MPG (I get about 12mpg)?

Does your gauge respond quickly to throttle or is it a tad sluggish?

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k