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[tcs]

Hi,
I have always kept detailed records of my fuel consumption (useful for calculating breakeven after lpg conversion!) and have noticed an odd cyclic variation I can't explain.

The car is an Omega estate 2.0cdx petrol manual but I also found a similar consumption on my Carlton estate 2.0 petrol.

I have a sinusoidal variation with a period of about 28kmiles which equates to about 14 months with the consumption varying by over 2mpg (avg about 29).

I can't tie this down to anything, especially as it is quite such an obvious sinusoidal curve. It certainly doesn't match tyre changes and with a period of 14 months it doesn't really match the weather either.

I appear to be getting a similar pattern after lpg conversion but it is proving more difficult to calculate of course.

Any ideas/comments?
Regards.

[feeutfo]

nearly empty, fill it back up, easy. :-)

[Big Fra]

WTF? :-?

[feeutfo]

WTF? :-?

Yeah, that was my first thought, i think his helicopter is giving him a headache? ....maybe?

[Tonka.]

Never analysed Migs fuel consumption that closely...........can't be bothered 

[Lizzie_Zoom]

Hi,
I have always kept detailed records of my fuel consumption (useful for calculating breakeven after lpg conversion!) and have noticed an odd cyclic variation I can't explain.

The car is an Omega estate 2.0cdx petrol manual but I also found a similar consumption on my Carlton estate 2.0 petrol.

I have a sinusoidal variation with a period of about 28kmiles which equates to about 14 months with the consumption varying by over 2mpg (avg about 29).

I can't tie this down to anything, especially as it is quite such an obvious sinusoidal curve. It certainly doesn't match tyre changes and with a period of 14 months it doesn't really match the weather either.

I appear to be getting a similar pattern after lpg conversion but it is proving more difficult to calculate of course.

Any ideas/comments?
Regards.

I dream of such figures!!

[Ian_D]

erm... yeah   

[Lazydocker]

Stopped monitoring my consumption when I got a Range Rover

Now I just fill it up when it's thirsty, although running fart juice makes it more bearable

[jonnycool]

'Get a life' seems appropriate

[tunnie]

i put petrol in it, and it takes me places, job done! 

[JamesV6CDX]

While I agree the OP seems to be taking the monitoring of fuel consumption to a whole new level - let's refrain from making rude comments at the guy 

That said, I must agree with the sentiments already expressed - an Omega (especially 2.0, which is the most thirsty model), is not a car to own, if you're worried about Miles Per Gallon... 

[tcs]

OK guys, I've got a thick skin 
I'm just natuarally curious about such things, which I guess comes from working in a scientific field.
The consumption isn't great but it's damned comfortable!
Regards.

[jonnycool]

Sorry buddy, just never come across anyone who's analysed their fuel consumption in that much detail before. A lot of us are trying to get their cars to run at all

[Tonka.]

A lot of us are trying to get their cars to run at all

I like it