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INCONSISTENT FUEL CONSUMPRION AND DUAL RANGE GEARING

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Old 11 December 2006, 12:46 AM
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X30NGO
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Default INCONSISTENT FUEL CONSUMPRION AND DUAL RANGE GEARING

First post, hi all. Just got my first scoob a week ago etc etc.

Ok, so... 2 Litre GX AWD...

I drove 206 miles from Liverpool to Bristol, at 70 mph, Motorways all the way in quiet traffic. This cost me a full tank which was close to £35.

After ****** myself (!) I refilled, and on the return, after filling £35 again, found that i arrived home with half a tank left!!!

Can anyone give me any help with why this happened as i'm clueless!!!

What are other people fitting in their tanks, what are they getting for their money?? It just seems strange how it worked out for me today!!


Also, with the dual range gears, when in Lo range, should i be able to tell??!! Strange question maybe, it's just that i can't tell really that its in lo range apart from the light on the dash saying 'LO'!!! At 20mph for example, will it rev higher in low range than normal?? Sorry for possibley sounding so daft...


John.
Old 11 December 2006, 12:52 AM
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F1 CJE UK
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yep it should rev higher in low range than normal and give you better acceleration

o and welcome
Old 11 December 2006, 12:57 AM
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its cos you were going south mate, its down hill,,, pmsl


right joking aside, should think it was due to going south, we are in a southerly wind at the min (i think), and that will make a huge difference, wind behind you is a very very big advantage
Old 11 December 2006, 11:06 AM
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X30NGO
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i've driven 30k+ a year for 5 years in cars and vans throughout the year all over the UK and have never experienced this.

A logical answer that has come up on SIDC forum is this....


Probably the ECU learning. Its normal when you've not been on the motorway for some time, you still burn fuel like you're drining on the B-Roads. After a long motorway trip the ECU adjusts and uses less fuel. You'll probably find your next tank on the B-Roads will last longer too!

Most of my driving is B-roads, so when I get on the motorway, the first tank is lucky to last 250km. Couple of tanks later I can be pushing 400km!



thanks for helping though.

bongo.
Old 11 December 2006, 11:10 AM
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Tidgy
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Originally Posted by X30NGO
i've driven 30k+ a year for 5 years in cars and vans throughout the year all over the UK and have never experienced this.

A logical answer that has come up on SIDC forum is this....


Probably the ECU learning. Its normal when you've not been on the motorway for some time, you still burn fuel like you're drining on the B-Roads. After a long motorway trip the ECU adjusts and uses less fuel. You'll probably find your next tank on the B-Roads will last longer too!

Most of my driving is B-roads, so when I get on the motorway, the first tank is lucky to last 250km. Couple of tanks later I can be pushing 400km!



thanks for helping though.

bongo.
don't think they learn that quick tbh
Old 11 December 2006, 12:26 PM
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X30NGO
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is almost 450 miles quick???
Old 11 December 2006, 12:33 PM
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Tidgy
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Originally Posted by X30NGO
is almost 450 miles quick???
not sure, but tbh have made that much difference it would have had to adjusted in 200 cos the change would have had to have happened at the mid point to make a big difference
Old 11 December 2006, 12:54 PM
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speedking
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Were you fiddling with the lo range **** between runs
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