Hobbes, that's exactly what I was looking for - some real world comments. I'm planning on going with the 205/50R16 ExtremeContact DWS first, then maybe after a year or so upgrade to a lightweight 16x7 wheel since I'll already be running the tire I want anyway.

 

I have the old Conti Pro Contact tires in 195-55-15s on 15"x 7" RPFI Enkei wheels and really like them a lot.... Everyone seems to love the Extreme Contact tires.

 

Just swapped to the 205/50/16 Goodyear FuelMax tires. It's definitely an upgrade to have wider tires. Still breaking in the tires so unaware of the actual fuel savings. Hugs the road and makes the ride less stiff

 

With a car like the Fit, the combination of total tire & wheel weight is a bigger factor in fuel savings that rolling resistance. Since the 205/50/16 FuelMax is the same weight as the stock Dunlop, if it's mounted on a stock Sport wheel, I doubt you're going to see any difference at all. The additional width of the contact patch with the 205 will most likely erase any savings from rolling resistance.

I had a 2007 Civic Hybrid, and the Fit is similarly underpowered and highly precise, meaning weight is a far larger factor than rolling resistance. When I changed tires on my Civic, I changed to a Yokohama Avid TRZ in the same size, which had much better mileage rating/rolling resistance, but the total tire/wheel weight was 4lbs heavier than stock. I LOST a solid 4mpg by making that change, and 95% of my driving is on the interstate, where start-up torque is a non factor since the car is already running at speed (no rotational inertia issue for the wheels at 70mph).

Just my 2 cents...

 

Running Pirelli P6 205/50/16 on stock 2009 Fit Sport Rims.
After they wore in (about 1.5 tanks of gas) cornering performance is distinctly better, have to really push it to get the tires to squeal, and unlike the Dunlops from dealer they don't really break loose easily - they squeal and then grip again.

Far more solid road manners, less bumpy, and tire noise is reduced a little. Did notice "squirrelly" steering initially with decent lateral wind (~15-30 MPH) over break-in period.
Total cost, 660 and some change.

 

I am wanting to keep my stock 16" wheels but go either 205/55/16 or 205/65/16 since he Duncraps ride so rough and make crazy noise on the highway.

I searched but can't find input on the 205/65/16 tires...

 

Wow! Why would you want to go with those bulky tire sizes as replacements??? The first one is a 2mph difference and that 205/65-16 is a 6mph difference, and probably a few pounds more weight per tire!

Tire size calculator

 

Good feedback. I'm getting close - going to need new rubber unless I can get through the spring rain without killing myself. But now I'm having second thoughts.

I was going to buy some 205/50-16's now, then buy a lightweight 16x7 wheel and move the tires over in a year or so. Then I got to thinking, why bother going from a 16x6" to a 16x7" wheel? I'm still going to have a set of stock wheels to get rid of, right? I plan on keeping my Fit and eventually turning it into a tuner/hobby car at some point. So now I want to go straight to a 17x7 wheel with a 205/45-16 tire. I just don't want to spend the money right now!