john james
New Member
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I think you're off a bit;
90 litres = 19.797 imp. gallon
90 litres = 23.7755 US gallon
1 US gallon = 0.833 imp. gallon
Found that on Convertking.net. I have used this site many times and it looks very precise to me.
P38 DT/DSE/DHSE owners - how many miles to a tank?
- Thread starter MikeV8SE
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I think you're off a bit;
90 litres = 19.797 imp. gallon
90 litres = 23.7755 US gallon
1 US gallon = 0.833 imp. gallon
Found that on Convertking.net. I have used this site many times and it looks very precise to me.
- Posts
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- Preston Lancs.
Yeah have had a look for converter i used can't find the bloody thing now. So don't know how i got 19.82 which is 90.104 litres. It should of course be 19.797. gallons as you say. But 19.82 gallons imp is indeed 23.8028 US gallons. The .87 was as i said a guess. But was not relivent anyway. Can't see that .104 of a litre would have made a lot of difference anyway to the mileage calculations. 450 miles on 19.82 gals is 22.70 mpg. 450 miles on 19.797 gals is 22.73 mpg.
Fur Trapper
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What are you doing splitting a hair? I think you are being to fooken picky. And are you a perfect cock or just a cock? And the point you were trying to make?
Now did you know that temperature of the fuel will effect how many gallons you can put in the same tank?
iv just been splitting hairs. but they was the ones on me wifes fanny
opps did i say to much:doh:
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True John, but not a lot of people know that. A 90 litre tank will hold more than 90 litres of cold fuel. But less than 90 litres of warm fuel. The capacity of the tank does not change, but the volume of the fuel does. 90 litres is actually 19.79723234691 imperial gallons if he wants to be totally pedantic. But that is of course the volume of the tank, what you can actually get in it varies with temperature.
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kernowdragon
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Here's cracker for those still believing their trip computer..... reset mine before setting out round m25 today (2.5DT), checked range and mpg after 15 miles, result... range 386 miles (with only about 1/4 tank left), and mpg 51.4!! Dream On!
Wammers: True John, but not a lot of people know that. A 90 litre tank will hold more than 90 litres of cold fuel. But less than 90 litres of warm fuel. The capacity of the tank does not change, but the volume of the fuel does. 90 litres is actually 19.79723234691 imperial gallons if he wants to be totally pedantic. But that is of course the volume of the tank, what you can actually get in it varies with temperature.
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Yep, right, but what about the temperature of the tank too? Only a valid argument when adding fuel to a tank of a different temp, or then again not, because the linear coefficient of expansion for abs (tank) is 78x (10-6 m/m K) and diesel is approx 600x (10-6 m/m F). (apologies for mixed units).
So obviously best value for money is to put cold fuel into a warm tank, but for the pedants out there, just how much better....?
As if anyone gives an eff...
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Yep, right, but what about the temperature of the tank too? Only a valid argument when adding fuel to a tank of a different temp, or then again not, because the linear coefficient of expansion for abs (tank) is 78x (10-6 m/m K) and diesel is approx 600x (10-6 m/m F). (apologies for mixed units).
So obviously best value for money is to put cold fuel into a warm tank, but for the pedants out there, just how much better....?
As if anyone gives an eff...
Datatek
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Reset the trip when you fill the tank and you will find it takes some 20 miles before it settles to an accurate computation. If you re-set with a quarter tank, it doesn't have much chance and certainly not after only 15 miles and even more so if you have a power box fitted
jamesblake
Active Member
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I stuck in £129.50 the other day. Got 354miles from it.
I can't be bothered with maths....but it's not good.
2002 DHSE - 85000miles - climate control always on. hour the do 10miles every morning half hour home. Evening and weekends around town, no traffic.
I can't be bothered with maths....but it's not good.
2002 DHSE - 85000miles - climate control always on. hour the do 10miles every morning half hour home. Evening and weekends around town, no traffic.
jerrytlr
New Member
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I make that a little under 17mpg, which I guess is about right for around town driving?
Cheers,
Jerry
Old thread but here's my 2P........
So i've been using the P38 as my trusty workhorse for the last 4 months doing mostly motorway miles with a few A/B road trips in between and a little bit round town (not too much TBH)
For the first 4500 miles I left it to the trip computer which gave an average of 32.4 MPG........so I have then since done the calcs by hand. Each tank I fill with 80 litres, reset the trip and off I go, have been doing this for the last 3000+ miles and have calculated the real MPG to be 31.7 which really, really surprised me!
I get between 520-560 miles per tank (80 litres) and was nicely surprised with the figures (80 litres = 17 UK gallons/540 miles)
What really got me was the trip computer wasn't far out
Note: Motorway = 65-70, A road 50-55 and only going over 75 when overtaking on motorway so nice and steady all the way. 2.5 DSE with power box fitted
So i've been using the P38 as my trusty workhorse for the last 4 months doing mostly motorway miles with a few A/B road trips in between and a little bit round town (not too much TBH)
For the first 4500 miles I left it to the trip computer which gave an average of 32.4 MPG........so I have then since done the calcs by hand. Each tank I fill with 80 litres, reset the trip and off I go, have been doing this for the last 3000+ miles and have calculated the real MPG to be 31.7 which really, really surprised me!
I get between 520-560 miles per tank (80 litres) and was nicely surprised with the figures (80 litres = 17 UK gallons/540 miles)
What really got me was the trip computer wasn't far out
Note: Motorway = 65-70, A road 50-55 and only going over 75 when overtaking on motorway so nice and steady all the way. 2.5 DSE with power box fitted
Littelwill
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Im getting about the same, Fill it up, do around 470/ 530 miles then fill it back up.
But anyway if fuels an issue... Buy a Honda..
But anyway if fuels an issue... Buy a Honda..
weimieman
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Just my two penneth but I've had the same tank of gas and petrol in mine since the first week of December. Does it not count if its been off the road for repairs though
tomcat59alan
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Just my two penneth but I've had the same tank of gas and petrol in mine since the first week of December. Does it not count if its been off the road for repairs though
Very bitter.
stuu
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I was 420 my last tank. Manily a roads here lot of down to 40 back to 60 pasing thru villages 30 then to 60. Fair few hills. Psi box thingy fitted. Drive in steel toe caps. Heavyish foot. Dse auto. On springs off road height. 255/60r18s insted of 255/55r18s
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Dont fill with just 80 litres as inbetween you could be dipping into the remaining 10litres or so giving false readings....
Best to brim the tank to the first click of the pump....do a bunch of miles as normal and when it is time to fill again, brim the tank to the first click....this is a sure fire way of knowing the tank is filled to almost the same point eachtime.....take a note of the total trip mileage and do the maths...
Would be intrigued to see if the numbers are similar......
Datatek
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Pumps sometimes click after the first litre
I fill until I can see the stuff in the filler neckweimieman
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tomcat59alan
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Damn right, but I'm getting over it
:hysterically_laughi
