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Old April 19th, 2019, 08:22   #50
Veteran Member
Join Date: Apr 2001
Location: Southeast Texas
Fuel Economy: 37 MPG (~ 45% city)

Originally Posted by KevinGary View Post
I have now used the new Exxon fuel exclusively for the last 2,340 miles and have averaged a hand calculated 30 mpg. This is a 4.7% improvement over the 28.6563 mpg that I averaged for the car's first 89k miles. It is also a 12.8% improvement over the 26.59 mpg that I averaged during the 2,622 miles before the switch. While still not a scientific analysis, the MPG improvement that I have experienced with this fuel continues.
That's pretty impressive. Thanks for sharing your data KevinGary.

I wonder if in more performance engines, such as a V6 TDI, the potential MPG gains will be more noticeable (above 5% gain or so) and perhaps cost effective vs a TDI that is averaging around 40 MPG or better.
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