Quote:
Originally Posted by Execut1ve
I don't think regearing to higher gears is an option since it already struggles a bit maintaining highway speed, likes to downshift on all but the slightest hills.
|
There you have it : go for improvements in the (low to mid) rpm range at these speeds.
They'll allow you to keep in the higher gear longer, drive slower while still maintaining good FE (when overall engine efficiency drops because of lower rpm, driving slower will not gain any mpg anymore), or even gear up in the future.
I'm sort of in the same boat.
@100 kph / 62mph and 2000 rpm in 5th (top) gear, driving slower doesn't help anymore to get better mpg.
Even a small incline seriously increases the FC.
The car can't be driven efficiently @ 90 kph (which is the official extra urban speed limit here) - it's consuming more fuel than @ 100kph.