Technical Fuel & Mileage/Range Display Question

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Technical Fuel & Mileage/Range Display Question

Andysan

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Hi all,

New Bravo 150 Sport owner & very excited by it too. I've come to fill the car up for the first time and having never owned a diesel before wondered if there is anything to chose between brands? My petrol Fiesta handbook said that BP was recommended, however I doubt it makes any difference - just want to be sure.

Also, I've read up on why the mileage/range fluctuates so wildly but why does it only display a series of dashes at under 50 miles please? Is it a clever way of making you panic into getting some fuel or just that it cant accurately predict how much range you have left? Cheers.
 
Mine runs a lot better on BP Ultimate Diesel, quicker pick up, quieter idle, less smoke on start up and slightly better comsumpsion. I never let mine mine get that low as you may start start pulling the crap through from the bottom of the tank. 08 Bravo MJet 150 Sport.
 
The Bravo is nowhere near powerful enough to need higher octane fuel, but there are tiny performance and economy gains to be had if you do use them.

The market leaders are Shell and BP, both of which have their advocates, but don't feel as though you need to remain loyal to one particular brand as you will not notice the difference.

Oh, and the reason Ford 'recommend' BP is nothing more than mutual back-scratching and nothing to do with their fuels being 'better' than any others.
 
It doesn't matter how 'powerful' a car is. It all depends on if the car has a map for higher octane fuel that'll be picked up by the knock sensor.

No idea if the Bravo has, but it's nothing down to how quick or powerful the engine is.
 
Mine runs a lot better on BP Ultimate Diesel, quicker pick up, quieter idle, less smoke on start up and slightly better comsumpsion. I never let mine mine get that low as you may start start pulling the crap through from the bottom of the tank. 08 Bravo MJet 150 Sport.

dont think it would make any difference how low you let the tank get..

the feed is at the bottom of the tank, so its going to be pulling all the crap from the bottom of the tank anyway?

unless the crap floats :rolleyes:



i use asda fuel anyway or what evers cheapest

i do notice a difference when using shell though doesnt even have to be the high octane stuff either i notice better throttle responce, car feels faster and seems to accelerate better/smoother, better fuel eco too.
 
Thanks, I went for BP as I wont go past a Shell garage until I make the commute to work. Made me laugh - range showed a whopping 550 miles and went up to 620 miles on the trip home. Does anyone know why the dashes represent when the range gets low please? Does it mean you're empty or just that its not telling you as it cant give an accurate reading.

Thanks!
 
Can't give an accurate reading. I've still got 50+ miles out of my Tjet 150 when the dashes have appeared. It's far from empty.
 
Thanks, I went for BP as I wont go past a Shell garage until I make the commute to work. Made me laugh - range showed a whopping 550 miles and went up to 620 miles on the trip home. Does anyone know why the dashes represent when the range gets low please? Does it mean you're empty or just that its not telling you as it cant give an accurate reading.

Thanks!

cant give an accurate reading im guessing.. when the empty light comes on it usually has about 70miles left. the range seems to work up to the point of 35miles then changes to dashes

although ul be suprised how much you have left when it gives the dashes. i had the needle vertical and its safe to say i was pooing it since i was on the motorway, every blooming slip road that day seemed to be shut where there was a petrol station!
 
... I've read up on why the mileage/range fluctuates so wildly but why does it only display a series of dashes at under 50 miles please? Is it a clever way of making you panic into getting some fuel or just that it cant accurately predict how much range you have left?

When the [low fuel] warning light glows – take the hint & top-up. If you don’t – it can get `interesting’ should a DPF regen kick-in & demand some of your fuel reserve.

It happened to me in the last snow. Driving home late (00:30) to the rurals, then [low fuel] shows – OK no problem (thinks I) that’s good for (say) 40+ miles, I’ll re-fuel tomorrow. But dash me - DPF regen kicks-in & wipes-out estimated range to [dash-it!]. An interesting 10 mile drive to re-fuel in the morning … on a cold engine. Get the picture?

The [range] is a calc based on your history - it can't accurately predict your future.

----------------------------
55 Prestigio 1.9/16v 150hp 56.3Kmls (42mpg)
 
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Your explanation may be more accurate, but I can guarantee mine will be understood by far more people :p

A car can have 50bhp and still have two maps for two different fuel ratings.

People might understand your explanation - but it's totally wrong.
 
People might understand your explanation - but it's totally wrong.

I wasn't trying to be "right" I was trying to explain it in terms that the majority will understand, the majority for whom comments like "...It all depends on if the car has a map for higher octane fuel that'll be picked up by the knock sensor." mean next to nothing.

The simple fact is most mainstream cars are designed to run on 'standard' fuels, so using higher octane 'premium' fuels will be of little or no benefit, regardless of what the fuel companies will try to have us believe.
 
I wasn't trying to be "right" I was trying to explain it in terms that the majority will understand, the majority for whom comments like "...It all depends on if the car has a map for higher octane fuel that'll be picked up by the knock sensor." mean next to nothing.

The simple fact is most mainstream cars are designed to run on 'standard' fuels, so using higher octane 'premium' fuels will be of little or no benefit, regardless of what the fuel companies will try to have us believe.

Calm yourself down, I'm only kidding (y)

Although....

I wasn't trying to be "right"...

I understand where you are coming from when people ask questions the general idea is to give them the right answer and not the made up simple one :D
 
I understand where you are coming from when people ask questions the general idea is to give them the right answer and not the made up simple one :D

You are confusing made up with simplified...

Unfortunately not everyone is as much of an expert as you clearly think you are, but I apologise for invading your section and treading on your toes by answering a question before you...

I'll slip quietly back in to the 500/Panda/Grande Punto/Punto Evo sections...
 
You are confusing made up with simplified...

Unfortunately not everyone is as much of an expert as you clearly think you are, but I apologise for invading your section and treading on your toes by answering a question before you...

I'll slip quietly back in to the 500/Panda/Grande Punto/Punto Evo sections...

Calm it down a tad, this is clearly all in jest!

I can understand simplifing and that's cool, but when you 'simplify' down to the degree where what your saying isn't actually true anymore I'd say it's not gonna help much.
 
Thanks for the replies chaps, all useful info ha-ha.
 
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