DFCO and Autos - Toyota Yaris Forums

MadMax · 11-08-2008, 11:35 AM

OK, this may have been discussed in the numerous other threads on DFCO and fuel economy; but I was hoping I could get some clarification on how to get DFCO to work with an auto.

In an earlier thread on DFCO, it was believed that you had to tap the brake lightly to get the auto to downshift and engage the DFCO. Is this still the case, or can you simply let off the gas and let it kick in? Or, do you have to manually downshift into 3rd gear to get it to work?

Right now I am "only" getting 35 MPG, but I do have bigger, wider tires (215/45ZR17 Riken Raptor ZRs) which will drop the fuel efficiency a bit; but I drive it very conservatively and mostly at highway speeds, so I was hoping for a little better (and yes, I do adjust my computations for the larger tires). I am hoping that I could utilize the DFCO capability better to improve my mileage.

Cheers! M2

11-08-2008, 11:35 AM	#1
MadMax Drives: 2008 Yaris Liftback (Sprocket) Join Date: Oct 2008 Location: San Antonio, Texas! Posts: 2,799	DFCO and Autos OK, this may have been discussed in the numerous other threads on DFCO and fuel economy; but I was hoping I could get some clarification on how to get DFCO to work with an auto. In an earlier thread on DFCO, it was believed that you had to tap the brake lightly to get the auto to downshift and engage the DFCO. Is this still the case, or can you simply let off the gas and let it kick in? Or, do you have to manually downshift into 3rd gear to get it to work? Right now I am "only" getting 35 MPG, but I do have bigger, wider tires (215/45ZR17 Riken Raptor ZRs) which will drop the fuel efficiency a bit; but I drive it very conservatively and mostly at highway speeds, so I was hoping for a little better (and yes, I do adjust my computations for the larger tires). I am hoping that I could utilize the DFCO capability better to improve my mileage. Cheers! M2