Fiesta ST MPG Thread

Still 35-38 hwy on 93 octane, higher side with non alky gas on Mountune MP-215 at 75 mph. Has been consistent for 7 years for me, just keep you foot under control when cruising. At my age I am no longer using the accelerator as an on/off switch, I know what Fi-Fi can do. Curvy back roads are her element. Just set the cruise on the interstate and crank up the music with '60's/'70's rock.

Mustang plug...this year we took my wifes '19 Mustang GT/CS with Coyote and the B&O CD sound system. Between the variable exhaust and Stereo the car makes glorious noises and 8000 mile road trip was a ball! Usually take Fi-Fi but back pain issues demanded the better ride this year. BTW hwy mileage was about 27-28 mpg @ 75 mph in the Sport mode so could have done better. Again, keep your foot out of it for mileage.

My other car is a 77 Continental Mark V with a 460, so I'm happy to drive the Fiesta everywhere I can, regardless of my heavy foot.

What's nice about a reasonably sized stock drivetrain (but heavier tires) vehicle is, even driving like a complete idiot (but still shifting properly) the worse I got on a tank was probably 26 MPG. Driving the same way with most of the other vehicles out there, MPG would probably be in the teens.

I burned high test and was getting 6.1 L/100 kms on highway with my ST. Which for our American friends that is about 39mpg The rating is 6.8 L/100 kms

I get about 23-24 mpg. The most I achieved was going from LA to Utah to the Octane Academy where I saw around 30. Never seen it since!

All drivers must keep in mind that the roads, gas, temps, tires and driving style all effect gas milage. My FiST is pampered and driven gently in town or interstate hwy. She's 9 years old and 75K miles on her, 8.3 K miles per year is all she sees. The E.TN/W. NC curvy mountain roads and I destroy mpg and I don't care! When I am not driving aggressively I skip shift 1-2-4-6 and rarely go over 4500 rpm before shifting. I am usually in no hurry being retired and on my own schedule. With the MP-215 I get my best mileage on non-alky 93 gas. Can't find it on the road so alky 93 or less in places. I have seen 38 mpg hwy on non-alky, 35-36 with alky. 28 city non-alky 26 with. Yes 93 non-alky is more expensive, I don't care.

26 mpg avg as I drive city ish streets. 50mph streets with traffic lights. On the highway I get around 27mpg cruising at 80-85mph. I've yet to take my car to a track or a stretch on the street where I can give it enough beans to drop into the teens