StirCrazy
Kamloops, BC, Canada
Senior Member
Joined: 07/16/2003
View Profile
|
valhalla360 wrote:thefivers wrote:Hello all, this hasnt been mentioned so its probably not an option anymore. Years ago a friend changed the chip in his computer, he was running diesel and it increased mileage with both towing and unloaded. Is that still a thing, will "chipping" (I think they call it) increase the mileage of a diesel, or gasser too?
Yeah, because the manufacturers never thought to improve efficiency by different programing.
You can chip to get more power (possibly causing engine damage if abused) but the manufacturers are pushed hard to maximize MPG by govt rules.
What they are mandated is that their gas fleet overall must meet a specific fuel milage target on average. diesels trucks generally are exempt from epa mandates as they are not in the same classification as your family mini van. Also, diesel targets are focused on by products from combustion not actual fuel milage as doing one drops the other at a basic level. for example it is easier to properly tune a diesel electric engine so it has low outputs and good milage as it is only designed to run at one speed so it can run at that speed very efficiently, who cares about the 20 second start and warm up, but a truck motor has to operate as efficently as it can at any speed and throw DPF filters and DEF fluid processing in the works and it becomes a tuning nightmare. so, a lot of time factory tuning in modern emission vehicles is a compromise for every condition.
for example, my truck when it does a regen for the DPF, consumes an extra gallon of gas per regen that contributes nothing to milage
2014 F350 6.7 Platinum
2016 Cougar 330RBK
1991 Slumberqueen WS100
|
.jpg)
