Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Field Marshal Dr. Opti on 01 January 2012, 19:37:29
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I regularly drive the 400 mile round trip from Lincolnshire to Powys in my 2.6 MV6. Petrol consumption is ALWAYS in the region of 31/33 MPG according to the trip computer.
I've just recorded a piss poor 25.8 MPG for the exact same trip.........(less traffic than usual, too.)
Any idea why, chaps?.
No warning lights showing, and she is running faultlessly. Air filter?....
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Are the multi rams working?
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Thermostat sticking open?
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When was the car last serviced.
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Are the multi rams working?
How can I tell Mr DLK?
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Thermostat sticking open?
Possible.
Ticking over on the drive the fans will eventually cut in. In normal driving the temperature needle barely gets off it's stop......especially with the AC working.
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I assume all tyre pressures were checked.
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Are the multi rams working?
How can I tell Mr DLK?
Why not PM him - am sure that 'The Great One' will impart his vast knowledge ;)
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fuel filter maybe ?? :-\
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You can tell if the multi rams work by a good blast of the throttle
you should see multi ram move on the bag pipes
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Thermostat sticking open?
Possible.
Ticking over on the drive the fans will eventually cut in. In normal driving the temperature needle barely gets off it's stop......especially with the AC working.
Thats not going to help, you need a new thermostat for a start :y
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temperature difference..
trip computer donald ;D
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I regularly drive the 400 mile round trip from Lincolnshire to Powys in my 2.6 MV6. Petrol consumption is ALWAYS in the region of 31/33 MPG according to the trip computer.
I've just recorded a piss poor 25.8 MPG for the exact same trip.........(less traffic than usual, too.)
Any idea why, chaps?.
No warning lights showing, and she is running faultlessly. Air filter?....
How about a rubbish tank of petrol? There is some about. I've not had problems with the Omega but the bike has pointed me to avoiding one particular outlet due to abysmal running.
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Thermostat sticking open?
Possible.
Ticking over on the drive the fans will eventually cut in. In normal driving the temperature needle barely gets off it's stop......especially with the AC working.
Thats not going to help, you need a new thermostat for a start :y
Definitely. In my very recent experience a dead thermostat wipes off 4 or 5 mpg straight away. Keep the A/C off - as you imply, the extra cooling caused by the heater matrix trying to warm the cooled cabin air is enough to push the engine temperature down noticeably this weather.
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Thermostat sticking open?
Possible.
Ticking over on the drive the fans will eventually cut in. In normal driving the temperature needle barely gets off it's stop......especially with the AC working.
Thats not going to help, you need a new thermostat for a start :y
Lies deep between the creamy bosoms of the lusty V6 if memory serves ;D ;D. Why do Vauxhall make it so inaccessible to the novice mechanic such as myself.... :'( :'( :'(?
I should have asked Mark to replace it when he fitted a new oil cooler for me......DOH.... :'(
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Why do Vauxhall make it so inaccessible to the novice mechanic such as myself.... ?
Mmm ??? Guess it wasnt designed for us novices , have you ever tried replacing the auxilary belt :o :o ;D
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Why do Vauxhall make it so inaccessible to the novice mechanic such as myself.... ?
Mmm ??? Guess it wasnt designed for us novices , have you ever tried replacing the auxilary belt :o :o ;D
Open the bonnet of Mrs Opti's Corsa 1.2 SXI and the stat is right there in full view. A ten minute job.......just as it should be.
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I have fond memories of a stat change on the V6 - with much valuable help/direction from Elite Pete. Thanks again Pete :y
The joys of the B Bolt, then the hose which could only be removed from the end of the coolant xfer pipe by cutting it off and concluded with the xfer pipe itself which could only be separated from the stat housing by sacrifice!
Agreed re the Corsa, did my Daughters in a Jif.
Good luck
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Why do Vauxhall make it so inaccessible to the novice mechanic such as myself.... ?
Mmm ??? Guess it wasnt designed for us novices , have you ever tried replacing the auxilary belt :o :o ;D
I'm guessing that they figure that parts such as thermostats are now so reliable that access isn't an issue any more.
Meanwhile, the beancounters spot an opportunity to have a couple of pence per car by fitting cr@p chinese thermostats... ::)