SuzukiSavage.com - gas mileage

Jerry Eichenberger

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Re: gas mileage
Reply #45 - 12/11/09 at 06:32:19

Justin -

Hills always hurt mileage - it takes more energy to overcome the climb than you save on the descent.

The same with headwinds - if you do a round trip, say 100 miles directly into a 20 kt. wind, then turn around and go back, same route with a 20 kt. tailwind, you'll burn more total fuel than you would on that same trip in a no-wind condition.

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Jerry Eichenberger
Columbus, Ohio

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Routy

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Winston Oregon
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Re: gas mileage
Reply #46 - 12/11/09 at 07:54:41

I agree,.....but........
Lets say flat land mpg is 50, and you start off w/ climbing a long..steady.. not very steep hill to the top, then turn around, turn off the engine, and coast all the way back down, you are saying that the mpg all the way up had to be less than 25 mpg,...right ? That don't seem right. But you ain't gettin no argue outta me !

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Rich
'07 S40 Blvd stocker, except drilled OEM exhaust and white spacer mod...1/2 (.055)

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verslagen1

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Re: gas mileage
Reply #47 - 12/11/09 at 08:26:36

When traveling along on the flat, you have about 1/4 throttle openning, gas/air ratio is about 1:14.
Going uphill, you may have WOT, gas/air ratio is still about 1:14. You just are filling the jug to fullist capacity and getting the full ~9:1 compression ratio
On the flat you may be filling the jug to half capacity ~5:1.
This is the reason for fuel savings at lower speeds besides air resistance and all.

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justin_o_guy2

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East Texas, 1/2 dallas/la.

Re: gas mileage
Reply #48 - 12/11/09 at 08:37:11

Jerry Eichenberger wrote on 12/11/09 at 06:32:19:

Justin -

Hills always hurt mileage - it takes more energy to overcome the climb than you save on the descent.

The same with headwinds - if you do a round trip, say 100 miles directly into a 20 kt. wind, then turn around and go back, same route with a 20 kt. tailwind, you'll burn more total fuel than you would on that same trip in a no-wind condition.

Yea, man, I know, just dont seem fair, thats all..

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The people never give up their liberties but under some delusion.- Edmund Burke.

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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28642 Tucson Az Gender:	Re: gas mileage Reply #49 - 12/11/09 at 09:06:53 I always get my best mileage on a 30 mile mt. road... 6000ft up and down,... Probably more to do with an average 40mph than anything, but hills don't bother our torguemonster much.... I usually average 65mpg on that ride,... compared to 60mpg normal...
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Digger

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Re: gas mileage
Reply #50 - 01/02/10 at 20:29:03

Serowbot wrote on 12/11/09 at 09:06:53:

I always get my best mileage on a 30 mile mt. road... 6000ft up and down,...
Probably more to do with an average 40mph than anything, but hills don't bother our torguemonster much....
I usually average 65mpg on that ride,... compared to 60mpg normal...

Higher altitude = thinner air = less resistance = better fuel efficiency.

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Digger
2001, Metallic Glacial Blue, Raptor Petcock, Verslavy (first hole) (otherwise, mechanically, the bike is stock), 13,xxx miles
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