As Yoda said, "there is another". And that is software. Yes, with a simple reprogramming of the engine management software in most newer vehicles, you can easily boost your fuel effeciency by a good 10-20 percent right now, and I mean now. The downside is a reduction in power.
All modern engines use sophisticated software that contain "maps" for the engine. These maps control the engine by sensing all kinds of stuff, like speed, outside airtemperature, timing, fuel flow, and so forth to make the engine perform according to specification. You just need to change the specification to a lower rating for the engine. Many after-market speed shops offer software to boost power by tweaking these maps. There is absolutely no reason why you can't go the other way. There is also no reason why you couldn't make the power rollback optional. Say I want to do a brisk drive, well I set it for Performance. If I want to sip my gas, I set it for economy. With the appropriate software, you can do the reprogramming in 15 minutes or less.









Discuss