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Pleased with my mpg in the mountains.

3570 Views 22 Replies 11 Participants Last post by  spacedout
I bought my 13 Eco MT in November to replace my 07 G6. I have a longer commute now than when I owned the G6 and 25 mpg just wasn't enough. I knew my Cruze should get more but I didn't expect the mileage I am getting fairly consistently. First off I am averaging 37- 38, a high of 40, and when my wife drives a low of 33. It doesn't sound too impressive until I take into account what my drive includes. My home is 45 miles away from my work. Elevation a home is about 5600 ft above sea level, during my 45 mile drive to work I climb to 6500 ft within the first 15 miles, it stays at that elevation for about 15 more miles until I reach the largest mountain at a peak of 6880 ft and finally get to go down the last 15 miles to a final elevation of 4200 ft. Going to work I can get stellar mileage due to the large downhill the last third, but remember that I have to drive back up that very same hill going home. So overall I am extremely pleased with what this little engine can accomplish. Kudos to the design team for the ECO.
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· Monsieur Charmant Résident
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1,189 Posts
DFCO really works well in the Cruze.
Agree. DFCO properly utilized significantly bumps up the Cruze's fuel efficiency in M32 manual transmission-equipped cars. In 6T40 automatic transmission-equipped Cruzen, not so much.
 

· Monsieur Charmant Résident
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1,189 Posts
DFCO will start anytime you're (or Cruze Control) off the throttle and the RPMs are above 1500. The manuals will enter DFCO in about 2 seconds. The automatics in about 4. This means you need to let off the gas enough over 1500 RPM to ensure the car remains above 1500 RPM for the 2 (4) seconds it takes for the ECU to trigger DFCO. The upper limit for engine speed is the red line.

Once entered, DFCO remains on until you press the clutch in, resume throttle input, or let the engine drop below 1250 RPM. The automatic transmission will remain in DFCO during a downshift.

You can feel the car enter and exit DFCO and once it's triggered it can enter and exit DFCO every half second. The feel you get is a small reverse kick in the seat when entering DFCO and an equally small forward kick in the seat when exiting DFCO. We have had members complain about their Cruze "jerking" while descending long moderate hills on Cruze Control. This "jerking" is DFCO. You can also see DFCO in action on the DIC by putting the car in Metric and watching for 0 L/100KM.
obermd,
^ ^ ^ ^ ^ Your DFCO post should be a CruzeTALK sticky! :) ^ ^ ^
 
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