Thread: Ford Fiesta
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Old 06-05-2012, 08:43 AM   #36 (permalink)
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1/2 inch shorter and 10 pounds lighter here capnbass91. My routes are almost ideal for higher mileage. I have noticed that I can actually get my mileage to begin to recover from a cold start in my neighborhood where it is .3 mile to the main highway which is 45 MPH rising to 55 MPH headed east. I use neutral coasting after a 30 MPH pulse in the first .2 mile the coast for the last .1 mile. I have seen that coast showing a mileage increase above 45 MPG even though the engine should still be cold since it has been running less than 1 minute.

I have no instrumentation to show engine temp or to confirm DFCO but the mileage reading seems to confirm the car shifting down as you slow down and it seems like it does this to maintain DFCO on deceleration (in gear) based on the mileage readings which are higher for that short time versus neutral coasting under the same circumstances. I am still perfecting the deceleration technique and in heavy traffic on the Interstate coasting in neutral helps maintain mileage when the traffic is moving slowly.

7300 miles now so I have about 2500 on the Fiesta since I got it. Probably well broken in by now. I tried 0 ethanol gas for the first 2000 miles. The difference in mileage is maybe 2-3 MPG compared to 87 octane E10 regular cheap gas. Going to take a 96 mile ride this morning on a 55 MPG back road. I'll reset the MPG reading to see what she will do at a steady 55 with no appreciable stops.

regards
Mech

regards
mech
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