Economy

[Guest j_mchattie]

There have been many posts about getting the best economy from certain cars.

 

Heres another.

 

Ford Mondeo LX MK1 93 1.8 Zetec-EFI with Production Spoiler, 148k miles (forget i told you that!)

 

What is the best speed to drive at for economy? Of course in the book it gives 56mph as the best figure (of the two listed!), but this is only because it is a round figure in KPH. There must be a BEST speed to drive at, not just because its the best figure printed of the two.

Surely there is a huge range of figure, or a chart that ford have made (there must be one for the ECU to work out the crazy stuff it does).

 

Thanks everyone

[Ivor_E_Tower]

Hard to figure it out - engine revs for maximum torque in top gear - but then you have to consider wind resistance etc. Probably more economical at 45 mph than 56, but do you want to travel that slow as the savings will be marginal? Air resistance/drag increases with the square of your speed, but it is not the only force that needs to be overcome by "wasted" fuel.

[Guest fredt]

Best speed for economy is PARKED :lol: :lol: :lol:

[Ivor_E_Tower]

...not with the engine running - using all that lpg and not going anywhere, fred?

:lol:

..and by the way, when they're parked, the TDI is just as quick as a VR6

:lol:

[Guest fredt]

..and by the way, when they're parked, the TDI is just as quick as a VR6

:lol:

That may be the case but its knowing thats ones a VR6 and has va va vooom

where as the other one has the ZZZZZZZZZZ factor :lol:

[johnb80]

..and by the way, when they're parked, the TDI is just as quick as a VR6

:lol:

That may be the case but its knowing thats ones a VR6 and has va va vooom

where as the other one has the ZZZZZZZZZZ factor :lol:

Surely with lpg it should be va va BOOOM ? :lol:

[Guest fredt]

Surely with lpg it should be va va BOOOM ? :lol:

Not quite! but it was close today! we had air under all four wheels! :D had to be somewhere at 11.45 so we left home at 10.45 no problems as we though we had left plenty of time to get there, that was untill we saw the signs for road closed

:D sort of knowing my way round the area I took a couple of side roads only to be confronted by more road closed signs :lol: a large detour later and now running very late I floored it and managed to get lift off :D while going over a small bridge :D the kids loved it and asked if we could do it again :D the Mrs wasnt so impressed and said NO :lol:

[Danny Boy]

you was put in the bad books then Fredt!!! :(

 

Is the missus talking to you yet? :P

[Guest fredt]

She is :D we got there three minutes late and missed the train :( but not being run by BR or some other blood sucking network they called it back just for us! :P

this made everyone on the train happy as they got a longer trip :D and the kids got to see Santa on the christmas express :P