- Apr 18, 2001
- Southeast Texas
- 2004 Passat Wagon (chainless + 5 MT + GDE tune)
Well, now it is time to switch back to regular for a few thousand miles and see if it goes down!
Certainly that's a fair option to consider.
There is also the cost/benefit factor. If someone has base-lined their vehicle's MPG with fuel a and b sufficiently to move to fuel c, which is trending and averaging more than 2% gain in MPG vs fuels a/b, then there might not be a need to go back to those previous less efficient fuels.
I am curious, is there any other D2 fuel brands that have in writing a specific fuel economy gain statement?