Omega Owners Forum

Chat Area => General Car Chat => Topic started by: TheBoy on 16 July 2012, 16:58:53

Title: LPG Price per mile
Post by: TheBoy on 16 July 2012, 16:58:53
As promised (some weeks back  ::)), here are the fuel costs for TBE:

LPG
Odometer Trip Distance Fill Amount Price per Litre Total Price Partial Fill Mile Per Gallon Pence Per Mile
591545915468.5   0.769   52.68      
5934919546.32   0.709   32.84   19.138316.84102564   
5965330468.23   0.699   47.69   20.255215.6875   
5992827567.58   0.759   51.29   18.499218.65090909   
6018025265.42   0.719   47.04   17.511718.66666667   
6037819859.18   0.697   41.25   15.2120.83333333   
6061023267.76   0.759   51.43   15.565122.16810345   
6084323368.94   0.699   48.19   15.364620.68240343   
6110225969.94   0.699   48.89   16.83518.87644788   
6134724564.54   0.699   45.11   17.257418.4122449   
6159624963.8   0.699   44.6   17.742617.91164659   
6184424870.74   0.749   52.98   15.937721.36290323   
6205020651.43   0.729   37.49   18.209118.19902913   
6226921950.97   0.739   37.67   19.532917.20091324   
6250924061.83   0.749   46.31   17.646219.29583333   
6274123263.02   0.779   49.09   16.735821.15948276   
6298924861.67   0.799   49.27   18.281719.86693548   
6321923058.05   0.799   46.38   18.012120.16521739   
6347025166.28   0.779   51.63   17.215920.56972112   
6371624667.78   0.759   51.45   16.499520.91463415   
6397525965.78   0.799   52.56   17.899620.29343629   
6424226768.91   0.697   48.03   17.614417.98876404   
6445721560.94   0.749   45.64   16.038921.22790698   
6470124463.38   0.779   49.37   17.501520.23360656   
6493423367.06   0.739   49.56   15.795421.27038627   
6517624258.3   0.739   43.08   18.870617.80165289   
6541523964.64   0.759   49.06   16.808720.52719665   
6568226759.3   0.759   45.01   20.468916.8576779   
6591823649.2   0.709   34.88   21.806414.77966102   
6608616838.81   0.749   29.07   19.67917.30357143   
6632423852.98   0.799   42.33   20.422217.78571429   
6661429066.92   0.719   48.12   19.700616.59310345   
Title: Re: LPG Price per mile
Post by: TheBoy on 16 July 2012, 16:59:46
TBE Petrol:
   Odometer (mi)      Trip Distance      Fill Amount      Price per Litre      Total Price      Partial Fill      MPG   
   56266      56266      41.2      1.249      51.46               
   56573      307      57.51      1.259      72.41            24.2679   
   56793      220      45.96      1.299      59.7            21.7611   
   57039      246      44.69      1.299      58.05            25.0243   
   57285      246      30.03      1.339      40.21      Partial      22.1909   
   57415      130      26.07      1.299      33.86      Partial      22.1909   
   57596      181      7.41      1.349      10      Partial      22.1909   
   57623      27      56.13      1.329      74.6            22.1909   
   57807      184      28.26      1.299      36.71            29.5995   
   57880      73      15.07      1.299      19.58            22.0215   
   59430      1550      35.06      1.337      46.88            200.9823   
   61837      2407      20.01      1.307      26.15      Partial      207.4943   
   62059      222      37.59      1.229      46.2            207.4943   
   65404      3345      4.28      1.319      5.65      Partial         


Title: Re: LPG Price per mile
Post by: TheBoy on 16 July 2012, 17:00:32
For completeness, the Silver Bullet:
LPG:
Too large to display here. Excel Doc - http://theboy.omegaowners.com/oofpics/mv6/Silver_Bullet_LPG.xls

Petrol:
   Odometer (mi)      Trip Distance      Fill Amount      Price per Unit      Total Price      Partial Fill   
   174880      174880      32.04      1.339      42.9         
   178801      3921      30.04      1.317      39.56      Partial   
   181590      2789      25.13      1.287      32.34      Partial   
   183690      2100      3.79      1.319      5      Partial   
   183808      118      47.69      1.229      58.61         
   187800      3992      49.02      1.349      66.13         
   188531      731      16.42      1.319      21.66         
Title: Re: LPG Price per mile
Post by: tunnie on 16 July 2012, 17:11:07
Not fantastic if I'm honest, 28mpg average at say 133.9 fuel, would mean 21.42 pence per mile.

Which is what I get now, from the 2.2, my record was 10.5 pence a mile  :o (at 69.9p litre)
Title: Re: LPG Price per mile
Post by: TheBoy on 16 July 2012, 17:15:45
Not fantastic if I'm honest, 28mpg average at say 133.9 fuel, would mean 21.42 pence per mile.

Which is what I get now, from the 2.2, my record was 10.5 pence a mile  :o (at 69.9p litre)
Once again, you are completely missing the point, trying to justify to yourself your own views ;)

If you do the calcs on the petrol usage of TBE (the top few were purely petrol, no LPG), you will see its about 27p per mile ;)


Additionally, remember, I don't have the luxury of cheap LPG. Brackley BP is the cheapest for 20 miles ;)
Title: Re: LPG Price per mile
Post by: tunnie on 16 July 2012, 17:18:32
Not fantastic if I'm honest, 28mpg average at say 133.9 fuel, would mean 21.42 pence per mile.

Which is what I get now, from the 2.2, my record was 10.5 pence a mile  :o (at 69.9p litre)
Once again, you are completely missing the point, trying to justify to yourself your own views ;)

If you do the calcs on the petrol usage of TBE (the top few were purely petrol, no LPG), you will see its about 27p per mile ;)


Additionally, remember, I don't have the luxury of cheap LPG. Brackley BP is the cheapest for 20 miles ;)

Suggests an average of 22mpg on petrol?

I also don't have cheap LPG any more, as I rarely go past Asda at High Wycombe.  :(
Title: Re: LPG Price per mile
Post by: tunnie on 16 July 2012, 17:23:41
  57807         184         28.26         1.299         36.71                  29.5995

According to your figures you nearly cracked 30mpg, remember I was slated for claiming that from a 3.2  ::)

Thats 19p a mile, so 4p a mile saving  :(
Title: Re: LPG Price per mile
Post by: Entwood on 16 July 2012, 17:38:04
There's also a huge difference in a 4 pot V V6 on LPG and the way you drive v the way Jamie drives ... the less fuel you use the smaller the advantage of LPG ... :)
Title: Re: LPG Price per mile
Post by: TheBoy on 16 July 2012, 17:52:48
  57807         184         28.26         1.299         36.71                  29.5995

According to your figures you nearly cracked 30mpg, remember I was slated for claiming that from a 3.2  ::)

Thats 19p a mile, so 4p a mile saving  :(
Again, plucking figures to convince yourself.  How do you think I managed nearly 30mpg? By driving like you (due to the old dears in that back, coming back from Cardiff at 70mph), and notice it was a short fill - trying to see what MPG I could get ;). I'd expect to easily break 23mpg (easily) on gas doing that, so 69p*4.5/23m = 13.5p per mile being miss daisy, and at Asda fuel prices...

You need to compare like with like, rather that trying to convince yourself that you are saving by using petrol ;)
Title: Re: LPG Price per mile
Post by: TheBoy on 16 July 2012, 17:56:44
Suggests an average of 22mpg on petrol?
I'd say thats about what I was getting from TBE.
Title: Re: LPG Price per mile
Post by: 05omegav6 on 16 July 2012, 18:14:05
Fwiw seeing between 21 and 24 mpg from mine, doing mostly town/local work :-\ only manage to get north of 26/27 on a motorway cruise at the limit, not often enough to have much impact on the overall average. :'(

Coverting to lpg would mean paying less for the fuel in the first place, but would in no way mean buying less of it...
Title: Re: LPG Price per mile
Post by: TheBoy on 16 July 2012, 18:27:14
Fwiw seeing between 21 and 24 mpg from mine, doing mostly town/local work :-\ only manage to get north of 26/27 on a motorway cruise at the limit, not often enough to have much impact on the overall average. :'(

Coverting to lpg would mean paying less for the fuel in the first place, but would in no way mean buying less of it...
You are clearly not trying hard enough, Mr Al ;D

Given your figures for petrol are not dissimilar to TBE's (no surprise), you can see from my figures how mpg would drop, as would fuel costs
Title: Re: LPG Price per mile
Post by: Entwood on 16 July 2012, 19:23:46
Just my quick input ...  last 3 fills, which include the motorway run to the lakes and back ..

Total LPG (ltrs) 118.66
Total LPG (£)  £83.09
Total Miles 583

Now that works out at 14.25 pence/mile.

As I was running on gas I don't know what MPG petrol I would have got, but at the average price of 126.9 p/litre (£5:76 / gall) I would have had to have achieved 40.43 mpg to get the same economy .. and to get that from a well laden 3.2 is just dreaming...

At 30 mpg the saving would be  4.95 p/mile
at 25 mpg the saving would be  8.79 p/mile
at the 23mpg the computer "thinks" I was getting on petrol the saving was 10.79 p/mile

:)
Title: Re: LPG Price per mile
Post by: albitz on 16 July 2012, 19:34:31
I drive like miss Daisy and cant get anywhere near those figures in my 2.5. I did wonder if it needs setting up,but LD had a good gander at it not that long before I bought it and he was happy enough with how it was setup iirc. :-\
Title: Re: LPG Price per mile
Post by: Lazydocker on 16 July 2012, 19:59:10
I drive like miss Daisy and cant get anywhere near those figures in my 2.5. I did wonder if it needs setting up,but LD had a good gander at it not that long before I bought it and he was happy enough with how it was setup iirc. :-\

Yours is not perfect by any stretch... Perhaps I should have another look at it soon :-\
Title: Re: LPG Price per mile
Post by: albitz on 16 July 2012, 20:03:28
Would be much appreciated if you could Paul. Although it has suspected dispack trouble at the moment.I will be investigating that asap,but Im very short of time just at the moment,but hopefully things will calm down in a week or so. :y
Title: Re: LPG Price per mile
Post by: Lazydocker on 16 July 2012, 20:07:34
Would be much appreciated if you could Paul. Although it has suspected dispack trouble at the moment.I will be investigating that asap,but Im very short of time just at the moment,but hopefully things will calm down in a week or so. :y

No point in doing anything until that's sorted then ;)
Title: Re: LPG Price per mile
Post by: Lazydocker on 16 July 2012, 20:10:58
  57807         184         28.26         1.299         36.71                  29.5995

According to your figures you nearly cracked 30mpg, remember I was slated for claiming that from a 3.2  ::)

Thats 19p a mile, so 4p a mile saving  :(
Again, plucking figures to convince yourself.  How do you think I managed nearly 30mpg? By driving like you (due to the old dears in that back, coming back from Cardiff at 70mph), and notice it was a short fill - trying to see what MPG I could get ;). I'd expect to easily break 23mpg (easily) on gas doing that, so 69p*4.5/23m = 13.5p per mile being miss daisy, and at Asda fuel prices...

You need to compare like with like, rather that trying to convince yourself that you are saving by using petrol ;)

Tunnie seems to be unable to grasp that the only way to make a true comparison is to only change one variable, the fuel type ::)

No matter how many of us tell him that we have done the comparison and calculations, all of us coming to the same conclusions, he seems to be determined to slate LPG now because it's not really viable for him >:(

Bored with having the discussion about him with it now... Many of us have confirmed that the saving is around 10p per mile with proven, viable comparisons instead of plucking random figures from the air ::)
Title: Re: LPG Price per mile
Post by: twiglet on 16 July 2012, 20:11:50
I drive like miss Daisy and cant get anywhere near those figures in my 2.5. I did wonder if it needs setting up,but LD had a good gander at it not that long before I bought it and he was happy enough with how it was setup iirc. :-\

Yours is not perfect by any stretch... Perhaps I should have another look at it soon :-\

That's another reason why the 3 of us need to get together then!  :-X
Title: Re: LPG Price per mile
Post by: albitz on 16 July 2012, 20:14:57
Oi you,theres a bloody queue you know. :P ;D
Title: Re: LPG Price per mile
Post by: 05omegav6 on 16 July 2012, 20:19:00
My personal worst orange light to orange light is 82 miles from £30 :-X

By Mr Es maths I could save £120 ish per week 8)
Title: Re: LPG Price per mile
Post by: TheBoy on 16 July 2012, 20:23:05
Lazydocker - I know there is no malice in your Tunnie bashing comment, but it did come over slightly aggressive to a layman  :-\
Title: Re: LPG Price per mile
Post by: TheBoy on 16 July 2012, 20:24:35
Although I know tunnie knows you well enough not to take any offence :).  Besides, tunnie bashing is my job!
Title: Re: LPG Price per mile
Post by: Gaffers on 16 July 2012, 20:29:25
Did I just enter the Blue Oyster Bar by accident?  Is TB grooming the useless student now or is he just having an off day?
Title: Re: LPG Price per mile
Post by: Entwood on 16 July 2012, 20:32:52
My personal worst orange light to orange light is 82 miles from £30 :-X

By Mr Es maths I could save £120 ish per week 8)

£30 of fuel is 5.208 galls ....

82 miles from 5.208 is 15.74 mpg !!

On average LPG consumption is 20% less than petrol consumption so about 12.5 mpg on gas

82 miles would use 6.56 galls LPG

LPG is about 70p a litre or £3:18 a gall

your 82 miles would have cost you £20.86 on LPG .. a saving of £10 or 30odd%... :)

put another way .. on petrol it was 82 miles for £30 or 36.65 p/mile
on LPG 82 miles for £20 ..  or 24.39 p/mile  ....

Oh look .. just about 10 p/mile (in your case 12) savings ....  just  about what we reckon ....  :)

Title: Re: LPG Price per mile
Post by: 05omegav6 on 16 July 2012, 20:39:50
MID hovers around 23 mpg, but get through approx £300 a week ::) so a 30% saving is not to be taken lightly :y
Title: Re: LPG Price per mile
Post by: twiglet on 16 July 2012, 20:47:30
Oi you,theres a bloody queue you know. :P ;D

Sorry old boy... age before beauty and all that!  :D :P
Title: Re: LPG Price per mile
Post by: Lazydocker on 16 July 2012, 20:49:00
Lazydocker - I know there is no malice in your Tunnie bashing comment, but it did come over slightly aggressive to a layman  :-\
Although I know tunnie knows you well enough not to take any offence :).  Besides, tunnie bashing is my job!

In that case I apologise to anyone who read it that way... It wasn't my intention :-[ :-[

But, as you say, he knows me well enough to read it as I intended :y
Title: Re: LPG Price per mile
Post by: Lazydocker on 16 July 2012, 20:50:02
I drive like miss Daisy and cant get anywhere near those figures in my 2.5. I did wonder if it needs setting up,but LD had a good gander at it not that long before I bought it and he was happy enough with how it was setup iirc. :-\

Yours is not perfect by any stretch... Perhaps I should have another look at it soon :-\

That's another reason why the 3 of us need to get together then!  :-X

You need to see me again? ???

Time is short at the moment, unfortunately, but we'll have to try :y
Title: Re: LPG Price per mile
Post by: Entwood on 16 July 2012, 20:52:58
MID hovers around 23 mpg, but get through approx £300 a week ::) so a 30% saving is not to be taken lightly :y

Over 42000 miles and 4 1/4 years of LPG running, including all sorts of driving, towing the tin-tent, many changes to petrol/lpg costs, and buying fuel in France, I'm averaging a saving of 38.21% ... as you say ... not to be sneezed at :)
Title: Re: LPG Price per mile
Post by: twiglet on 16 July 2012, 20:53:26
I drive like miss Daisy and cant get anywhere near those figures in my 2.5. I did wonder if it needs setting up,but LD had a good gander at it not that long before I bought it and he was happy enough with how it was setup iirc. :-\

Yours is not perfect by any stretch... Perhaps I should have another look at it soon :-\

That's another reason why the 3 of us need to get together then!  :-X

You need to see me again? ???

Time is short at the moment, unfortunately, but we'll have to try :y

Don't worry Paul, it's not imminent.  I don't have time to crack a fart at the moment either.  ::)

Just something that Albs has been banging on about, and I think he's finally getting through to me.  ;)
Title: Re: LPG Price per mile
Post by: Lazydocker on 16 July 2012, 21:12:53
I drive like miss Daisy and cant get anywhere near those figures in my 2.5. I did wonder if it needs setting up,but LD had a good gander at it not that long before I bought it and he was happy enough with how it was setup iirc. :-\

Yours is not perfect by any stretch... Perhaps I should have another look at it soon :-\

That's another reason why the 3 of us need to get together then!  :-X

You need to see me again? ???

Time is short at the moment, unfortunately, but we'll have to try :y

Don't worry Paul, it's not imminent.  I don't have time to crack a fart at the moment either.  ::)

Just something that Albs has been banging on about, and I think he's finally getting through to me.  ;)

If it's what I think then he's right ;) ;)
Title: Re: LPG Price per mile
Post by: albitz on 16 July 2012, 21:29:19
It is - probably/possibly. :-X :y ;D
Title: Re: LPG Price per mile
Post by: Sir Tigger KC on 16 July 2012, 22:00:42
Me thinks TB has a leaden right boot!!  ::)

I get attacks of epilepsy if I have to run on petrol for any length of time....  :o  :'(
Title: Re: LPG Price per mile
Post by: feeutfo on 16 July 2012, 22:50:18
Me thinks TB has a leaden right boot!!  ::)

I get attacks of epilepsy if I have to run on petrol for any length of time....  :o  :'(
;D yes it does have deeply negative phsycholoical effects ;D

Passers by have asked me if I'm ok, whilst filling up with petrol... tears rolling down my face and gradually falling to my knees. :(

Not anymore. :)
Title: Re: LPG Price per mile
Post by: Kevin Wood on 16 July 2012, 23:40:20
Me thinks TB has a leaden right boot!!  ::)

I get attacks of epilepsy if I have to run on petrol for any length of time....  :o  :'(
;D yes it does have deeply negative phsycholoical effects ;D

Passers by have asked me if I'm ok, whilst filling up with petrol... tears rolling down my face and gradually falling to my knees. :(

Not anymore. :)

I find it's easier just to buy a jerry can every so often "for the lawn mower" and chuck a little in the Omega when I'm not paying attention. ;)
Title: Re: LPG Price per mile
Post by: TheBoy on 17 July 2012, 21:23:07
Me thinks TB has a leaden right boot!!  ::)

I get attacks of epilepsy if I have to run on petrol for any length of time....  :o  :'(
;D yes it does have deeply negative phsycholoical effects ;D

Passers by have asked me if I'm ok, whilst filling up with petrol... tears rolling down my face and gradually falling to my knees. :(

Not anymore. :)

I find it's easier just to buy a jerry can every so often "for the lawn mower" and chuck a little in the Omega when I'm not paying attention. ;)
I'm the opposite - I fill the MV6, then nick petrol out of it for the lawnmower...  ...any occasionally the bike ::)
Title: Re: LPG Price per mile
Post by: Lazydocker on 17 July 2012, 21:28:36
Me thinks TB has a leaden right boot!!  ::)

I get attacks of epilepsy if I have to run on petrol for any length of time....  :o  :'(
;D yes it does have deeply negative phsycholoical effects ;D

Passers by have asked me if I'm ok, whilst filling up with petrol... tears rolling down my face and gradually falling to my knees. :(

Not anymore. :)

I find it's easier just to buy a jerry can every so often "for the lawn mower" and chuck a little in the Omega when I'm not paying attention. ;)
I'm the opposite - I fill the MV6, then nick petrol out of it for the lawnmower...  ...any occasionally the bike ::)
But you're notoriously bad at "forgetting" to fill up so it's just as well you have a full petrol tank ::)