Miles on a full tank of Diesel

docbrown · Unread post by **docbrown** » 23 Nov 2005, 17:08

I have a 1998 xantia 1.9td

I have monitored my fuel consumption on the last 2 full taks and have found the following:

1. a total of 530 miles equating to 43mpg
2. a total of 470 miles equating to 35mpg

I usually drive around the city, not really stop start but rarely travelling over 40mph

does anyone think this is reasonable economy?

jeremy · Unread post by **jeremy** » 23 Nov 2005, 17:15

Yes - the Xantia is a heavy car - weighs more than a quarter of a tonne more than a similar BX, and its performance isn't that good so you are going to use considerable power to get it moving - even round town. Cold weather won't help either - how far have you driven it before the temp gauge reads normal?

Having said that I don't expect a petrol would give more than 25 under similar conditions.

docbrown · Unread post by **docbrown** » 23 Nov 2005, 17:22

the car is usually up to operating temp in around 5 minutes and each journey i make is not less than 30 mins

Rostami · Unread post by **Rostami** » 23 Nov 2005, 17:43

On my Hdi A full tank takes about 70 litres and can do 1200km.

JohnD · Unread post by **JohnD** » 23 Nov 2005, 18:17

Rostami wrote:On my Hdi A full tank takes about 70 litres and can do 1200km.

That equates to 48/49mpg - which for an HDI and warmer climate is about right.

rory_perrett · Unread post by **rory_perrett** » 23 Nov 2005, 18:35

'95 TD

10 miles to work and back through town in the rush hour Circa 34 mpg
Off down the motorway at 65/70mph for 200+ miles 48mpg or better.

Cold weather can make a 10 - 15% difference.

Rory

np · Unread post by np » 23 Nov 2005, 18:53

My 97 TD est does about the same as yours Doc brown.Sometimes a bit more.I average about 44 mpg at the moment,doing a fair few miles a week.400-500m a week.Thats a mixture of motorways,fast A roads,stuck in traffic.I do have a bit of a heavy right foot when conditions allow.
In the summer with the a/c on all the time i was getting about 38 mpg.
Even before i had it boosted the mpg was about the same.

np · Unread post by np » 23 Nov 2005, 18:56

Also i tend to fill up about 80 miles after the fuel light has come on.Brimming the tank.But i did manage to get 135 miles!!! out of it once after the light came on playing "fuel light bingo".So i could maybe add a few mpg to the above figure.But normally about 44 mpg.

p20 · Unread post by **p20** » 23 Nov 2005, 20:32

My HDi 110 does 560miles without the fuel light coming on. It usually averages about 47-49mpg, but can drop to 45mpg if given some stick.

James.UK · Unread post by **James.UK** » 23 Nov 2005, 21:22

Fuel gauges are wildly inaccurate, mine reads empty and the light comes on when i still have loads of fuel. with the light on I have never managed to get more than 38-40 litres in..But it should hold about 54?

The only fair test it to brim the tank, zero the milometer, run for a few days, then brim it again, check the number of miles covered and you know what is does to the gallon.

Use this link to save doing the maths.

http://javascript.internet.com/equivale ... llon2.html

fastandfurryous · Unread post by **fastandfurryous** » 23 Nov 2005, 21:23

One thing that can make a major difference to the economy of a TD is the fitting of a turbo boost gauge. It alters your driving style a lot, and you start to notice the massive difference in economy between using boost, and not using it.

Unread post by **Peter.N.** » 23 Nov 2005, 22:52

Fuel consumption is mainly determined by your driving style, age (although not necessaraly!) and terrain. I am old and drive an XM 2.1td Manual estate on mostly rural roads (although I do have to go to the metropolis of Exeter tommorow, which has turned into London since they moved the weather centre there) and average 40 - 45mpg, but on our fairly regular visits the the north of Scotland 50+ is the order of the day, giving 800 - 900 miles on a tankful (17 1/2 gallons) depending on how low you dare let it go. I dont drive slowly, but then I dont drive all that fast either, I endeavor to stay within the limit, but I dont generally accelerate hard, thats what drinks the fuel. You will learn that, if you do what fastandfurrious says, and fit a boost gauge.

AndyP · Unread post by **AndyP** » 24 Nov 2005, 00:05

My 1.9TD does 41-45mpg depending upon the type of road and level of abuse it gets. I do quite a lot of motorway miles and reckon cruising at 65 gives 45mpg, cruising at 75-80 gives 41mpg.

mcgregor · Unread post by **mcgregor** » 24 Nov 2005, 08:13

My HDi averages around 50 mpg week in week out. Admittedly on a rural run with only a small amount of town running. Not bad though for such a big car.
Dave

johnway · Unread post by **johnway** » 26 Nov 2005, 11:14

Hello,
My 1997 VSX 1.9 TD Xantia Hatchback returns at least 45 mpg every tankful whereas my 110 HDI LX C5 Estate manages 49 mpg +.
Love that C5 (especially as the heater and air con work!!)
John.

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Miles on a full tank of Diesel

Miles on a full tank of Diesel

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