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Posted by roarey on July 25, 2009, 9:33 am



>I decided to try a few experiments on fuel economy.
> Equipment used:
> VW Golf TDI 1.9
> Mpg meter on Golf's dashboard
> Tomtom One
> Experiment one - what speed should I drive at?
> I tried going at 50mph, 60mph, 70mph, and 80mph on the motorway.
> 50mph = 47mpg
> 60mph = 47mpg
> 70mph = 40mpg
> 80mph = 33mpg

quite good mpg, almost makes me consider buying a diesel car







Posted by Dr Zoidberg on July 25, 2009, 1:22 pm


>=20
>>I decided to try a few experiments on fuel economy.
>> Equipment used:
>> VW Golf TDI 1.9
>> Mpg meter on Golf's dashboard
>> Tomtom One
>> Experiment one - what speed should I drive at?
>> I tried going at 50mph, 60mph, 70mph, and 80mph on the motorway.
>> 50mph =3D 47mpg
>> 60mph =3D 47mpg
>> 70mph =3D 40mpg
>> 80mph =3D 33mpg
>=20
> quite good mpg, almost makes me consider buying a diesel car
>=20

That's not very good by modern diesel standards

--=20
Alex

"I laugh in the face of danger , then I hide until it goes away"

Posted by Silk on July 25, 2009, 3:05 pm


Dr Zoidberg wrote:
>>> I decided to try a few experiments on fuel economy.
>>> Equipment used:
>>> VW Golf TDI 1.9
>>> Mpg meter on Golf's dashboard
>>> Tomtom One
>>> Experiment one - what speed should I drive at?
>>> I tried going at 50mph, 60mph, 70mph, and 80mph on the motorway.
>>> 50mph = 47mpg
>>> 60mph = 47mpg
>>> 70mph = 40mpg
>>> 80mph = 33mpg
>> quite good mpg, almost makes me consider buying a diesel car
>
> That's not very good by modern diesel standards

That's what I was thinking. My Octavia 2.0D with DSG can easily beat
that - with cruise on at a steady 65mph, it'll do mid 50s. I'm looking
forward to the new 1.6D that, on paper at least, promises to be
exceptional when it comes to economy.

There are plenty of good sized petrol cars that'll beat 47mpg.

Posted by Dr Zoidberg on July 25, 2009, 4:14 pm


> Dr Zoidberg wrote:
>>>> I decided to try a few experiments on fuel economy.
>>>> Equipment used:
>>>> VW Golf TDI 1.9
>>>> Mpg meter on Golf's dashboard
>>>> Tomtom One
>>>> Experiment one - what speed should I drive at?
>>>> I tried going at 50mph, 60mph, 70mph, and 80mph on the motorway.
>>>> 50mph =3D 47mpg
>>>> 60mph =3D 47mpg
>>>> 70mph =3D 40mpg
>>>> 80mph =3D 33mpg
>>> quite good mpg, almost makes me consider buying a diesel car
>>=20
>> That's not very good by modern diesel standards
>=20
> That's what I was thinking. My Octavia 2.0D with DSG can easily beat=20
> that - with cruise on at a steady 65mph, it'll do mid 50s.=20

I've now got a 1.6 diesel Bravo which at a steady 50 or 60 will be doing =
70-80 mpg

> I'm looking=20
> forward to the new 1.6D that, on paper at least, promises to be=20
> exceptional when it comes to economy.

Yep.
On paper it's a smidge more economical than my Bravo but only having a =
five speed gearbox instead of six makes me think that in practice it =
won't be any better.
My average from new is a genuine 56mpg but on the last couple of full =
tanks I've got over 60 which is very good.
My Octy would typically do about 50-52 on a tank depending on how I'd =
driven which was still pretty impressive for a car that would also do a =
9 second 0-60 (though obviously not returning 52mpg at the time)

>=20
> There are plenty of good sized petrol cars that'll beat 47mpg.

At a constant speed the instananeous figure would be at that level =
though it would be tricker to get that as long term average.

--=20
Alex

"I laugh in the face of danger , then I hide until it goes away"

Posted by Ian Hatten on July 25, 2009, 4:27 pm



> Dr Zoidberg wrote:
>>>> I decided to try a few experiments on fuel economy.
>>>> Equipment used:
>>>> VW Golf TDI 1.9
>>>> Mpg meter on Golf's dashboard
>>>> Tomtom One
>>>> Experiment one - what speed should I drive at?
>>>> I tried going at 50mph, 60mph, 70mph, and 80mph on the motorway.
>>>> 50mph = 47mpg
>>>> 60mph = 47mpg
>>>> 70mph = 40mpg
>>>> 80mph = 33mpg
>>> quite good mpg, almost makes me consider buying a diesel car
>> That's not very good by modern diesel standards
> That's what I was thinking. My Octavia 2.0D with DSG can easily beat
> that - with cruise on at a steady 65mph, it'll do mid 50s.

I've now got a 1.6 diesel Bravo which at a steady 50 or 60 will be doing
70-80 mpg

> I'm looking
> forward to the new 1.6D that, on paper at least, promises to be
> exceptional when it comes to economy.

Yep.
On paper it's a smidge more economical than my Bravo but only having a five
speed gearbox instead of six makes me think that in practice it won't be any
better.
My average from new is a genuine 56mpg but on the last couple of full tanks
I've got over 60 which is very good.
My Octy would typically do about 50-52 on a tank depending on how I'd driven
which was still pretty impressive for a car that would also do a 9 second
0-60 (though obviously not returning 52mpg at the time)

> There are plenty of good sized petrol cars that'll beat 47mpg.

At a constant speed the instananeous figure would be at that level though it
would be tricker to get that as long term average.

--
Alex

"I laugh in the face of danger , then I hide until it goes away"

I run LPG and at around half the cost of petrol or diesel per litre I reckon
that I am getting high 70's low 80's equivalent £ for £. Might not get as
many miles per gallon but it is miles per £ I am more concerned with. I
average over 150 miles per £10 currently saving about £400 per 10k miles on
fuel alone and £15 road tax helps too.



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