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Author Reasons for shoot Fuel Economy?
PK1
Banned
Registered: 27th Mar 05
User status: Offline
9th Jan 06 at 16:08   View User's Profile U2U Member Reply With Quote
I've got a 1.5 mazda, supposed to get 40mpg etc.

Anyway recently its been getting 50 miles to #10 (25mpg)

checked:

brakes for sticking
tracking
tyre pressures
coolant sensor
lambda sensor looks ok

what else could it be?

Think it could be my 'granny style driving' as I change gear at 2000 rpm, think 3000 rpm could be better
leeshez
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Registered: 3rd May 01
Location: Great Harwood, Lancashire
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9th Jan 06 at 16:09   View User's Profile U2U Member Reply With Quote
Leaking some where?

[Edited on 09-01-2006 by leeshez]
PK1
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Registered: 27th Mar 05
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9th Jan 06 at 16:10   View User's Profile U2U Member Reply With Quote
and what do u get mpg?
PK1
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Registered: 27th Mar 05
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9th Jan 06 at 16:10   View User's Profile U2U Member Reply With Quote
ah you edited your post, ignore above
VegasPhil
Premium Member

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Registered: 16th Jan 05
Location: Fareham, Hants Drives: Octavia VRS
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9th Jan 06 at 16:10   View Garage View User's Profile U2U Member Reply With Quote
Heaters, Rear Screen, Car always needs more fuel to warm up. Takes longer too.

Been Driving it harder?

Corsa 2.0 16v Vegas - Sold
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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9th Jan 06 at 16:10   View Garage View User's Profile U2U Member Reply With Quote
tracking destroys fuel economy if its out, as would pressures and wheel balance

rag it a bit to clean it out, then see if it still does it

also, try a service
leeshez
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Registered: 3rd May 01
Location: Great Harwood, Lancashire
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9th Jan 06 at 16:11   View User's Profile U2U Member Reply With Quote
Ihave a 2ltr and i get 32-34 MPG according to the computer.
PK1
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Registered: 27th Mar 05
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9th Jan 06 at 16:12   View User's Profile U2U Member Reply With Quote
32 - 34 on a 2.0?

since its got a 'computer' im guessing its really modern

[Edited on 09-01-2006 by PK1]
leeshez
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Registered: 3rd May 01
Location: Great Harwood, Lancashire
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9th Jan 06 at 16:12   View User's Profile U2U Member Reply With Quote
yes it is an 05 reg 182 sport.
PK1
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Registered: 27th Mar 05
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9th Jan 06 at 16:13   View User's Profile U2U Member Reply With Quote
182 sport so not exactly slow!

dam 34's good on that!
sxi16vjoe
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Registered: 16th Dec 02
Location: Kent
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9th Jan 06 at 16:14   View User's Profile U2U Member Reply With Quote
i get 240 to a full tank. 2.2 16v
leeshez
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Registered: 3rd May 01
Location: Great Harwood, Lancashire
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9th Jan 06 at 16:14   View User's Profile U2U Member Reply With Quote
Once on a trip to hartlepool at 72 mph i got 41mpg now that is good on that car
Tim
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Registered: 21st Apr 00
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9th Jan 06 at 16:24   View Garage View User's Profile U2U Member Reply With Quote
Also bear in mind the recent cold weather kills fuel economy in general.

I get around 28 mpg (average) at the moment. Summer was 32 mpg on average.

[Edited on 09-01-2006 by Tim]
sxi16vjoe
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Registered: 16th Dec 02
Location: Kent
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9th Jan 06 at 16:25   View User's Profile U2U Member Reply With Quote
tim what do u get from yours?
Tim
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Registered: 21st Apr 00
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9th Jan 06 at 16:27   View Garage View User's Profile U2U Member Reply With Quote
Sitting at 70 on the motorway is about 34 mpg. Sitting at 90 on the test track is about 27 mpg.
loo_goblin
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Registered: 14th Jul 04
Location: Horsham, West Sussex
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9th Jan 06 at 16:28   View User's Profile U2U Member Reply With Quote
u got any pikie camps round u?? they could be syphoning sum off ya
Half Pint
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Registered: 25th Mar 02
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9th Jan 06 at 16:30   View User's Profile U2U Member Reply With Quote
Shit Driving !
sxi16vjoe
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Registered: 16th Dec 02
Location: Kent
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9th Jan 06 at 16:52   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Tim
Sitting at 70 on the motorway is about 34 mpg. Sitting at 90 on the test track is about 27 mpg.


I cant sit at 70 i get bored out my brains.
mazdaspeed
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Registered: 8th Jan 05
Location: Darlington
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9th Jan 06 at 19:13   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by PK1
checked:

brakes for sticking
tracking
tyre pressures
coolant sensor
lambda sensor looks ok

what else could it be?


Mazda engines have peak torque further up the rev range (about 4k) so rev higher to change gears. Check spark plugs, exhuast, air filter and fuel filter. If no luck then check the cam belt timing with a garage.
schoey
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Registered: 29th Jun 05
Location: Billinghay, Lincolnshire
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9th Jan 06 at 19:20   View User's Profile U2U Member Reply With Quote
i get 280 mpg, to a tank!!

Thats hammering it most the time aswel!
dave17
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Registered: 3rd Sep 02
Location: Greater London
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9th Jan 06 at 19:23   View User's Profile U2U Member Reply With Quote
i get 50 miles to £10 in my 1.4 16v. its so broken, iv given up on it

 
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