Maximum MPG comes from limiting assist (think of it as an electric supercharger). Most likely your cruise is being too aggressive in throttle response.kelleyd said:I
The first thing I did after obtaining this vehicle was to install cruise control, which was followed by a decrease in fuel economy. I wonder if that has to do with the fact that the cruise doesn't seem to push the accelerator down far enough at times to allow the electric assist to kick in.
Close, if you substitute the word load for speed in the above sentence then you'd be on target.kelleyd said:That really stinks, because I thought it would actually help increase fuel mileage by keeping a constant speed.
Hi Kelleyd:kelleyd said:How does the best mileage come from limiting assist?
OK, that pertains to jack rabbit starts, but surely the assist has other uses that benefit mileage such as on hills where the batteries can be recharged on the downhill side after helping the gas engine go up.xcel said:If you need that extra 2 seconds, by all means use it but you most certainly will not receive the fuel economy the Insight is actually capable of when doing so.
___Assist is to make our little beauties 1.0 L ICE run like there is a 1.3 L ICE under the hood. IMA also acts as the balance shaft given the design of the ICE w/ IMA system so you cannot really do without it. The pack simply isn’t large enough to do much else besides assist. If you could give up the Hybridization of the Insight, it might squeeze another 2 or 3 mpg more out on the highway but you would lose the performance from a stop as those 2 seconds can definitely be felt. The loss of Autostop would hurt the city numbers somewhat of course but the Insight might weigh just 1,750 - 1,800 #’s w/out Hybridization (I am guessing) and that would help alleviate the loss of the IMA somewhat as well.ethicalpaul said:OK, that pertains to jack rabbit starts, but surely the assist has other uses that benefit mileage such as on hills where the batteries can be recharged on the downhill side after helping the gas engine go up.
If it is bad to use assist, why do they bother making hybrids at all?