Quote:
Originally Posted by mcrews
read this.....again
it's easy to get fixated on something like this....had a tarsus that did the same thing.
But there are probably three other things you could do to get better mileage.half of a quarter of a gallon OVER 1 hour is nothing.
maybe you can reduce the rpm in half, but it doesn't use twice as much gas to run 1500rpm (IN NEUTRAL). And honestly, how much time do you really spend coasting....
__________________________________________________ ____
1.) buy a scangauge
2.) aba test your theory
3.) report back
you can discuss all the 'theories' you want until you are blue in the face.
everything in life is a bell curve. It's not worth dealing w the fringe stuff UNTIL you address the stuff in the middle.
SO....... how much time and distance is spent 'coasting'? (the fringe stuff) Which by the way has the LOWEST consumption of fuel on the whole trip probably only 10-15% of driving consumption.
FOCUS on the stuff that matters.
|
I have a scanguage on the ranger, and coasting at 60kph at idle (750rpm) I will get 65MPG or more, while at 2000 RPM I'm getting closer to 30.
At 100 kph I may get 144MPG at idle and closer to 50 at 2000 RPM. I'll have to record actual mileafe next time I do it - but it is VERY substantial.
I moved the scanguage to the Taurus to see what happens there last summer, and coasting in gear or out makes no difference in mileage because the revs match the speed when in neutral and their is no closed throttle fuel cut - so "pulse and glide" doesn't buy me anything on the Taurus.
With the Ranger (4 liter 5 speed 2.55 ratio and 235/70-16 tires) on my Wedneday trip to the local airport just coasting on the hills changes my fuel consumption from 20 MPG without to 24-27 with coasting - on a 15Km trip, about1/3 in urban traffic - rolling land in the Grand River Valley of Ontario