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Old 23rd September 2019, 20:12   #31
clf
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Originally Posted by COLVERT View Post
I measure tank to tank. Set the trip and off I go.

At the moment showing 53 mpg from my diesel.

Worst ever 49 mpg.

I use any diesel. The nearest garage when I need to fill up.

Never let the tank go below 1/2 full.

The vast variations by the OP leave me baffled.--

What ARE these additives that can give another 10 mpg.

I definitely want some.----


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Old 25th September 2019, 15:46   #32
COLVERT
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That really made oi laff.
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Old 26th September 2019, 11:29   #33
SD1too
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What ARE these additives that can give another 10 mpg.

That's a very good question Jon but the answer would, of course, be a closely guarded secret. I wonder why the oil companies concerned don't exploit this remarkable achievement in their advertising?

Simon
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Old 26th September 2019, 15:10   #34
COLVERT
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That's a very good question Jon but the answer would, of course, be a closely guarded secret. I wonder why the oil companies concerned don't exploit this remarkable achievement in their advertising?

Simon
I really enjoyed CLF's post. ( great way to save fuel.---)


Also your tongue-in-cheek answer that will probably go over the heads of lots of folk.---
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Old 26th September 2019, 15:57   #35
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Originally Posted by tourer View Post
I logged every single litre of fuel that went into my CDT auto tourer over the 12 years that I owned it.
It generally ran on Tesco's Finest (cheapest) but I did try other fuels including the Premium diesels.
They all returned the same mpg, give or take.
"give or take" ...


Quote:
Originally Posted by marinabrian View Post
Only press one pedal at a time is my advice

The big one on the left should not be used in conjunction with the small one on the right, if fuel consumption is a concern.

As an aside, my 1800 saloon, was indicating 42MPG today.......awesome

Brian
Good advice - better advice from an mpg pov is get a car with 3 pedals...

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Originally Posted by bsabantam View Post
Following the two tanks of premium diesel returning 37mpg, the tank is now filled with Morrisons diesel with a trip meter set to zero, same driving style lets see if the fuel consumption changes.
I shall get a diesel emissions report next week. Our works van a 1.3cdti Vauxhall returns 52mpg might try the same tests.
That'll likely also return a similar mpg - until everything is clogged up again...

Quote:
Originally Posted by Dorset Bob View Post
Very little change, I suspect.

Using premium fuels can give advantages, long term, with the additives used.
Swapping from one tank to another will not prove anything.

It is a bit like a fat bloke eating a salad for one day, and then jumping on the scales to measure the difference.
Couldn't agree more.

My own experience has been mostly with Shell ultimate (other premium fuel brands are available but with no guarantee of performing the same). On my regular commute (26 miles each way - same traffic each week, different weather). Running mostly premium fuel but occasionally sainsburys fuel. Consistently worse mpg (2 - 4 mpg) and didn't always run as smoothly. Never once did the Sainsbury fuel give better mpg than the Shell ultimate. And that is over 7+ years. Calculating the extra fuel cost against mpg also came out comparable in pence per mile most of the time as well. So for me it's proven that paying more for fuel doesn't have to mean a higher cost per mile.
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