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22-03-08, 08:59 PM
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#1
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Member
Join Date: Dec 2007
Location: Southampton
Posts: 3,078
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Mpg
i have owned the 180 for about 6 months and have regually got 260 miles out of a full tank. but the last 3 tanks i have only just got 200. i do the exact same drive every week at the same speeds. does any body know what could cause the sudden drop in economy
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22-03-08, 09:14 PM
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#2
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formally known as Typhoon 180
Join Date: Jul 2007
Location: Tamworth, Staffs
Posts: 2,192
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i filled mine up last week £55 and i got 280 miles out of it,
have you checked things like airfilter, plugs, tyre pressure and VIS valves?
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 Paint Correction Specialists covering the UK |
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22-03-08, 09:45 PM
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#3
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Site Owner
Join Date: Jul 2007
Location: Waterlooville, Hants
Posts: 24,096
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I can average 320-340 to a tank and that's with a mixture of driving. Try changing your driving style, no need to hammer it everywhere.
But make sure everything is tip top and in full working order.
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22-03-08, 10:47 PM
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#4
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Events Organiser-Scotland
Join Date: Jul 2007
Location: Livingston
Posts: 7,667
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I'm the same, about 300 - 320 out of a tank with mixed driving
If the VIS valves are on the way out you'll need a bit more throttle to get the power you want, so that might account for the drop
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22-03-08, 10:53 PM
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#5
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Member
Join Date: Jan 2008
Location: Brum
Posts: 714
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216 best i've ever got.. all town, stop start and with big fat boiots on 
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2005 MG ZS 180 Saloon Gone, but still in the family....
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23-03-08, 07:23 AM
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#6
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Member
Join Date: Dec 2007
Location: Southampton
Posts: 3,078
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the vis valves are ok theres enough power. its not booted every where as i only go between southampton and bournemouth on the motorway so im at 70 ish all the way. the plugs are due to be changed as the car is at 63,500 miles so will try that
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23-03-08, 08:27 AM
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#7
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Site Owner
Join Date: Jul 2007
Location: Waterlooville, Hants
Posts: 24,096
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If you are on the M27/A31 you should be getting into the 320 area if cruising at 70. I drive from Horndean to Bordon on the A3 at 70, then on the A325 into Farnham A31, then the A331 into Aldershot with mixed traffic and speeds, sometimes +70 I don't think I have ever even been near the 250 per tank mark, but then again if I pop a tenners worth in then sometimes it will go quicker if I take it for a country lane blast.
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23-03-08, 09:01 AM
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#8
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Member
Join Date: Dec 2007
Location: Southampton
Posts: 3,078
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thats is all i have ever managed to get so i thought it was normal but somewhere i am loosing 60 miles per tank doing very similar driving
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23-03-08, 09:12 AM
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#9
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Site Owner
Join Date: Jul 2007
Location: Waterlooville, Hants
Posts: 24,096
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Without knowing you or the car it is difficult to pinpoint the cause.
What are you up to today? There's a mini meet at the Halfords car park in Park Gate at 2:30 today if you want to come along as I will go to say hello.
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23-03-08, 11:07 AM
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#10
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Member
Join Date: Dec 2007
Location: Southampton
Posts: 3,078
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im in bournemouth. if i was at home i would have come. marty told me about it yesterday. i will try to get along to the next one
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