Fuel Cut Mode

Thread Tools

Search this Thread

05-29-2008, 02:28 PM

kristian

Ridiculously Active Enthusiast

Thread Starter

Join Date: Nov 2006

Location: Colorado Springs

Posts: 773

Fuel Cut Mode

To avoid hijacking another thread....

Quote:

Originally Posted by gpsman1

To get fuel cut on command, coast in L gear until you see 9999 MPG.
Then shift back into D and you will stay in fuel cut for the entire hill.
Shift to N and you will burn fuel at an idle pace, about 200 MPG.
That's how my 2005 works.

Coasting in L gear never gets me to fuel cut mode in my '08. L will increase my SoC until about 68% and then it will spin the engine way up and my mpg goes down into the 60s. In D, it will eventually go to fuel cut, but only in the last couple miles of I-70 before C-470 (which is a SERIOUS hill if you haven't driven it). This was in the winter starting out at the Eisenhower tunnel so temperature could have played a factor, but I was running in the 170+ temps and had the ability to autostop.

I've tried fuel cut on several other hills, but it only seems to happen for me between Genesee and Golden on I-70. Has anyone else been successful in an '08 at Fuel Cut Mode?