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Old 06-13-2019, 08:12 PM   #1 (permalink)
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Silver - '10 Chevy Cobalt XFE
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The Cobalt can still do it

20 mile trip 50 foot elevation gain, not bad at 112k

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Old 06-13-2019, 08:15 PM   #2 (permalink)
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'96 Civic Sedan 1.6 LX - '96 Honda Civic LX
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Wow great work!
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Old 06-13-2019, 08:45 PM   #3 (permalink)
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Wow, impressive! What driving style do you find works best for the car? Max speed?
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Old 06-13-2019, 09:19 PM   #4 (permalink)
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Quote:
Originally Posted by mpg_numbers_guy View Post
Wow, impressive! What driving style do you find works best for the car? Max speed?
Slower the better, top speed 45, acceleration through careful up shifting (no throttle) when possible eoc to stops. EOC through roundabouts
Roundabouts help FE greatly when empty and are worse than a light when busy

This car hates closely spaced stops
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Old 06-14-2019, 08:33 PM   #5 (permalink)
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Nice work! The 2.2 Ecotec can return amazing mileage with just a little work... I have to work hard to ever get less than 30mpg around home, even when not hypermiling...
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Old 06-15-2019, 10:24 AM   #6 (permalink)
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Quote:
Originally Posted by rmay635703 View Post
Slower the better, top speed 45, acceleration through careful up shifting (no throttle) when possible eoc to stops. EOC through roundabouts
Roundabouts help FE greatly when empty and are worse than a light when busy

This car hates closely spaced stops
Oh the joys of having a manual. My autotragic Civic was limited to one 60 mpg trip on the highway....with a tailwind...55 mph max...never to be repeated lol.

I hear ya on the roundabouts though, my college campus is filled with them and they can either be good or one royal PITA.
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Old 06-19-2019, 12:03 PM   #7 (permalink)
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I can't match your numbers, my XFE average speed is almost always 47 mph. Current tank I'm about 250 miles into with 43.7 mpg indicated, 263,500 miles. Rust is taking it's toll, rocker panels getting holes and had to replace some fuel line a few weeks ago.

My best 3 tank is 45 mpg. Going to switch to E0 for the next 3 tanks to see if I can beat that. Had a fueling issue I just sorted out after replacing plugs, coils, fuel injectors and O2 sensor. Leaking evap purge valve so I disconnected it. 30 mpg last tank to 42-3 this tank. Compression is still good at 192 to 205.

Last edited by roosterk0031; 06-19-2019 at 12:12 PM..
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Old 06-19-2019, 01:38 PM   #8 (permalink)
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Quote:
Originally Posted by roosterk0031 View Post
I can't match your numbers, my XFE average speed is almost always 47 mph. .
Too fast, my average was likely close to 25mph despite peaks around 45,
I took the shorter city/country route between towns rather than the highway

Tank average dropped into the 50ís after a bunch of short trips during cool weather from and to work. But was still good.

If I had the time and the correct route I could no doubt pull high 50ís over a tank but since I donít my average from low 40ís to low 50ís is what I have to settle for.

It was refreshing to see that when I actually tried to get decent FE the car still could, although conditions were as close to ideal as Iíll likely ever see on a city street.

Also goes to show that if I lived further from work my fuel economy would likely be much higher, despite the fact I would have to burn more fuel over the distance
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Old 06-19-2019, 01:40 PM   #9 (permalink)
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When I pulse and glide, I average around 47mph (40/55), but the roads are usually fairly flat as I hypermile... if IATs are between 100 and 110F I can usually average 50+mpg if I try...
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Old 06-19-2019, 01:42 PM   #10 (permalink)
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That's impressive.
Did you start with a warmed up engine?
What is the % of eoc on those 20 miles?

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