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Miles per gallon dropped from 70 to 45 miles per gallon

  

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Hi Scotty,

I live in UK and drive VW Passat 2013 1.6TDI, I use to get 70 miles per gallon when i bought this car 2016 then after emission software update in 2017, my car engine performance went significantly down and i was getting worse gas mileage. 

I have done service every year on time and i have had my DPF cleaned too but nothing has made difference. Could you please advise what is wrong with my stupid VW. Thank you


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Well it's all because they change the software. To make it not pollute. It doesn't get the good gas mileage. I would have never had the software changed myself. I would have left it alone. It's really nothing you can do unless you want to put it back to the old software. He can find someone you can do that


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