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Difficulty keeping 5 sp @ 65 mph

3848 Views 15 Replies 9 Participants Last post by  mjrogers
I love my new insight, but seriously miss cruise control :cry: . I try to keep my silver spacepod at the speed limit, but have 2 challenges.

1. It wants to zoom. When going flat or downhill this light, spunky thing wants to fly :twisted: .

2. On the inclines I either overanticipate and overshoot, or not anticipate enough and slowly lose 'altitude. :? '

I believe it may be related to old habits of getting it in 5th gear and keeping it there. Should I be going into 4th when anticipating an incline? My daily route is fairly flat. I commute between Davis & Sacramento: the flatter part of the Sacramento Valley. Most of my 'hills' are man made bridges over rivers, duck flyways/rice farms, and interstates.

I am not capable of installing a second party cruise control. Has anyone had success having Honda install one?

Is there something about my driving habits that I can change?
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use assist wisely


what I usually do is to place priority on maximizing efficiency instead of maintaining constant speed. I agree, it can be impossible to keep the needle pinned at exatly 65mph.

I usually keep the car in lean-burn, at around 70mpg, getting the maximum power lean-burn will give. A slight incline will make the car slow down. So I allow that for a bit, maybe down to 60mph. Then put more pressure on the accelerator to get assist (and drop into rich burn). If the incline is slight enough, this makes the car speed up. Do that until maybe 70mph and drop back into lean. repeat.

Because it uses lean-burn much of the time, this is more efficient than to just drop into rich and go up the hill at 50mpg (as cruise control would do). But it will annoy drivers behind you!
Re: Cruise Control vs. MPG

puck said:
What does cruise controll do for MPG?
As I said in my earlier post, you can optimize use of lean-burn, if you don't try to keep the speed exactly constant. Cruise control does the opposite: it optimizes for constant speed while neglecting mpg. It knows nowthing about lean burn.

With cruise control, you could easily be running in rich burn, even if conditions would allow for lean-burn. But the cruise control won't coax the car into lean (you have to lift the gas slightly to get lean-burn started, then return to maintain speed).

How much does this add up to mileage-wise? Did anybody who has cruise-control do a true comparison?
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