Decreased mileage in high altitude
January 7th, 2008, 10:46 AM
#1
CF Beginner
Thread Starter
Join Date: Jan 2008
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Decreased mileage in high altitude
I just moved from Pennsylvania to Colorado Springs (an altitude increase of about 5,000 feet)and have noticed that the mileage on my 2007 Cobalt has decreased by at least 2mpg and the estimated range on a full fuel tank has decreased by about 100 miles. Is there some sort of adjustment that can be made to the engine to reflect being in a high altitude? Nothing else has changed on the car either. Any info is appreciated.
Thanks
Dave
Thanks
Dave
January 19th, 2008, 9:29 PM
#3
RE: Decreased mileage in high altitude
at higher altitudes, air pressure and air density goes down. long story short, your motor has to work a lttle bit harder to compensate for the loss of pressure and density.
Think of somoene who climbs mountains, eventually they climb so high, that it gets hard to breath, and eventually they need oxygen just to breath. same goes for your car, though not to that extreme, but enough that you notice a change in your MPG
Think of somoene who climbs mountains, eventually they climb so high, that it gets hard to breath, and eventually they need oxygen just to breath. same goes for your car, though not to that extreme, but enough that you notice a change in your MPG
January 29th, 2008, 5:59 PM
#4
CF Beginner
Join Date: Jan 2008
Location:
Posts: 20
Likes: 0
Received 0 Likes
on
0 Posts
RE: Decreased mileage in high altitude
the air/fuel mixture uses more fuel to compensate for the air lost because of the altitude your at it cant get as much air as it did
January 29th, 2008, 6:43 PM
#5
CF Monarch
RE: Decreased mileage in high altitude
Definately agree ^^^ The MAF sensor will tell the computer that the air pressure is thinner, so in turn, the computerit will raise the ratio and increase the idling RPMs to compensate.
February 2nd, 2008, 6:32 AM
#6
CF Beginner
Join Date: Feb 2008
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
RE: Decreased mileage in high altitude
ORIGINAL: shawnvw
at higher altitudes, air pressure and air density goes down. long story short, your motor has to work a lttle bit harder to compensate for the loss of pressure and density.
Think of somoene who climbs mountains, eventually they climb so high, that it gets hard to breath, and eventually they need oxygen just to breath. same goes for your car, though not to that extreme, but enough that you notice a change in your MPG
at higher altitudes, air pressure and air density goes down. long story short, your motor has to work a lttle bit harder to compensate for the loss of pressure and density.
Think of somoene who climbs mountains, eventually they climb so high, that it gets hard to breath, and eventually they need oxygen just to breath. same goes for your car, though not to that extreme, but enough that you notice a change in your MPG
Trending Topics
February 3rd, 2008, 12:12 AM
#8
CF Beginner
Join Date: Feb 2008
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
RE: Decreased mileage in high altitude
ORIGINAL: shawnvw
at higher altitudes, air pressure and air density goes down. long story short, your motor has to work a lttle bit harder to compensate for the loss of pressure and density.
Think of somoene who climbs mountains, eventually they climb so high, that it gets hard to breath, and eventually they need oxygen just to breath. same goes for your car, though not to that extreme, but enough that you notice a change in your MPG
at higher altitudes, air pressure and air density goes down. long story short, your motor has to work a lttle bit harder to compensate for the loss of pressure and density.
Think of somoene who climbs mountains, eventually they climb so high, that it gets hard to breath, and eventually they need oxygen just to breath. same goes for your car, though not to that extreme, but enough that you notice a change in your MPG
February 12th, 2008, 3:45 PM
#9
CF Junior Member
Join Date: May 2007
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
RE: Decreased mileage in high altitude
I also live in the springs and drive an 01 cavalier, I think our bombed fuel economy is partially due to the thin air and also I would acredit it to the bumpy/hilly roads here in town. Not only that, being winter time i tend to let my car warm up atleast a few mins before i start driving which wastes a little bit of gas too.
Thread
Thread Starter
Forum
Replies
Last Post
51StylelineDeluxe
General Tech
1
June 28th, 2013 1:14 PM
