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Discussion Starter · #1 ·
I originally posted this question over on the new owner forum and it was recommend to me that this may be a more appropriate place, so here goes.

I've only had my 6-speed EX for a couple weeks and my fascination with the control panel hasn't worn off. Given weather and road conditions recently, I've mainly been driving in normal or Econ mode rather than sport.

The odd thing I've noticed is that the "optimum" shift speeds for the manual transmission are listed as 15, 25, 40, 47 and 52 mph in the Owner's Manual (p 207) but the instrument panel is consistently signalling me to shift up to a higher gear (during normal, versus aggressive acceleration) much earlier, up to 20 mph earlier. For example, when I'm already in 5th, it's giving me an up-shift indicator at about 32 mph.

The dealership didn't have any definitive information on this, but thought it might be related to a difference in Colorado's 5000 feet of altitude versus a standard sea level calibration. I could image some amount of difference, but not enough to account for 20 mph.

I'm just wondering if this is a symptom that something's off with the computer or if it needs to be recalibrated. Alternatively, why would the shift indicator be programmed for something other than the optimal shift speeds?

Thanks for any feedback!
 

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Discussion Starter · #5 ·
I agree with all your observations.

Maybe my question is more about how the Honda enginnering team's calculations were interpreted by the team writing the owner's manual, and which ones they chose to document.

I think we can all agree that there are many ways we can drive, each of which is optimal (or far from it) in a different way. For example, keep it in sport mode, jack up the RPMs and optimize the fun.:thumbsup:

If the computer on board is trying to optimize the mileage what do you think is being optimized by the shift speeds in the manual? For example do you think it's related to the smoothest acceleration, engine life and maintenance, or something else?

Yeah, I'm a geek.:p
 
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