from the factory 2.88 to a 3.46 from a non-turbo, because my daily route is now all 45 mph and soon to be lowered to 35 for the Jamestown quadracentennial years, and I could use some oomph to leave all those new stoplights briskly. I suspect that the fuel mileage will be about the same, because it may get into 4th gear a lot more often.

When I've got some fast cruising to do, I take the '86 BMW 324td anyway.