2017 VW Jetta with Low MPG
Hi all!
I purchased a brand new 2017 Volkswagen Jetta S on September 2017 with only 11 miles. About 5 days after I noticed it consumed too much gasoline. In 5 days I had spent $87. to keep tank full. I told the dealer car service personnel about it and the service manager suggested to do a gasoline consumption test. He told me not to give too much attention to what the MPGs on vehicle panel indicate because it is not always accurate. So I filled up the tank, reset the Trip A or B mileage to "0" and kept driving until tank was empty. After tank was consumed and emptied I wrote down how many mileage those 14.5 gallons lasted. Out of the numerous times I've done this test the range of MPG has been from 16mpg to 26mpg. My math calculation example is the following: Total mileage per tank fill-up (after consumed gasoline): 289 Total gallons capability in tank of my Jetta: 14.5 gallons 289 ÷ 14.5 = 19.93MPG I am wondering if this is the same test y'all are doing when determining and reporting the MPG of your vehicle. |
You don't divide the 289 miles by the 14.5 gallon capacity of the tank. You divide the 289 miles by however many gallons you put in when you refill the tank. If you bought say 13.73 gallons then you got 21.05mpg not 19.93. Still not good but a little better.
Is your car stick shift or automatic? What rpm are you shifting at? What is your tire pressure? Do you have extra stuff in the car? What speed do you usually drive? How quickly do you accelerate? All those things can affect your overall mpg. |
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