how many miles you get ?

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Grrrmachine
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Sun Aug 17, 2014 1:47 pm

reggid wrote:learn to control the right foot
...and the left. Resting the foot on the clutch will cause slippage and therefore increased fuel at certain speeds. Also learn to use engine braking when approaching stops; Motronic cuts off all fuel if the accelerator is at idle but revs are over 1500rpm, which helps eke out a few more drops of motion lotion.
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Brianmoooore
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Sun Aug 17, 2014 2:01 pm

Look a little less at the rev. counter, and a little more at the gauge directly below it, in the same bezel. Learn the art of keeping it top the left.
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Maxtek
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Sun Aug 17, 2014 2:02 pm

Grrrmachine wrote:Also learn to use engine braking when approaching stops; Motronic cuts off all fuel if the accelerator is at idle but revs are over 1500rpm, which helps eke out a few more drops of motion lotion.
Could you explain this please?

I usually down-shift into corners, but I thought that there was no fuel being fed into the engine whilst your foot is off the accelerator.
leeparkes
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Sun Aug 17, 2014 3:24 pm

magpie wrote:130 miles on £30 with mixed driving m52 + m50 manifold and bbtb
Thats pretty much the same as me! I get 40 miles (sometimes just a tad over) to £10 worth of fuel @ £1.30ish a litre, thats round town too.
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place.. :o:
Grrrmachine
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Sun Aug 17, 2014 3:36 pm

Maxtek wrote:
Grrrmachine wrote:Also learn to use engine braking when approaching stops; Motronic cuts off all fuel if the accelerator is at idle but revs are over 1500rpm, which helps eke out a few more drops of motion lotion.
Could you explain this please?

I usually down-shift into corners, but I thought that there was no fuel being fed into the engine whilst your foot is off the accelerator.
That's exactly it. "Accelerator at idle" means "foot off the accelerator, so if you shift down then you'll push the engine revs over 1500rpm, cutting off the fuel.

However, if you coast along with the clutch in but the foot off the accelerator, then the engine will actually idle, which uses fuel. So engine braking/shifting down uses less fuel than rolling/coasting.
ross_jsy
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Sun Aug 17, 2014 4:19 pm

magpie wrote:
rich318i wrote:you wish lol
wtf ...that's what i get out of mine,no reason to lie is there :roll:


go find ya bum boy alpenis123 :wink:
I wonder how many mpg Rich's imaginary 3 litre build is getting him :)
JF008
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Sun Aug 17, 2014 8:14 pm

JF008 wrote:So what can someone do to improve mpg? what are the key areas to look at?

-regular maintenance, oil, spark plugs etc
-check tire pressure
-new engine coolant temp sensor
-leak free exhaust system
-good clean injectors
-?
-?
-?
I'm not lurking on this forum to learn how to drive or how to read my instrument cluster thank you :wink: I'll rephrase: Which components, when failing, are most likely to affect fuel consumption?
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Maxtek
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Sun Aug 17, 2014 9:00 pm

Grrrmachine wrote:
Maxtek wrote:
Grrrmachine wrote:Also learn to use engine braking when approaching stops; Motronic cuts off all fuel if the accelerator is at idle but revs are over 1500rpm, which helps eke out a few more drops of motion lotion.
Could you explain this please?

I usually down-shift into corners, but I thought that there was no fuel being fed into the engine whilst your foot is off the accelerator.
That's exactly it. "Accelerator at idle" means "foot off the accelerator, so if you shift down then you'll push the engine revs over 1500rpm, cutting off the fuel.

However, if you coast along with the clutch in but the foot off the accelerator, then the engine will actually idle, which uses fuel. So engine braking/shifting down uses less fuel than rolling/coasting.
Right, thanks.

I've never known anyone to coast around with their foot on the clutch, unless I've misunderstood something again. :?
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Iffy_E30
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Fri Aug 22, 2014 8:28 pm

BMW 320I

£10 worth at £1.28 a litre will get me around 40-45 miles around town and A roads.
The Only Way Forward is Sideways
minesapint
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Fri Aug 22, 2014 8:50 pm

The ONLY way to measure fuel consumption is brim-to-brim the tank at the same pump, same petrol station.
Did mine today 34.22mpg over the last 304 miles.
1986 325i Cab, covered 21633 miles since new.

Cheers
mcspike
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Sat Aug 23, 2014 3:40 pm

In my 316i I get about 350 miles to about 55L driving A/B roads in midwales. I never drive slow but I rarely hoon it either. Pretty crap to be fair, only 30MPG.

I would get about 24mpg in the 325i when it was running. Made me want to go back to a rotary, 17/20mpg regardless of how you drive makes things veeery fun.
Last edited by mcspike on Sun Aug 24, 2014 1:23 am, edited 1 time in total.
Ryan
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colbee
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Sat Aug 23, 2014 3:56 pm

My cab is a 320i and on the open road it returns 35mpg and around town its doing around 25mpg which IMO is ok for a 27year old 6pot automatic car
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stew72
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Sun Aug 24, 2014 9:20 am

After seeing this thread I thought I'd check my M40'd cabby. It did 700 miles last week, 450 of which were fully laden towing a 5x3 trailer (family of 4 and more camping gear than millets) and I got 36 mpg. Didn't think that was too bad.
George
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Sun Aug 24, 2014 11:40 am

I would be happy with > 300 miles for a tank in the 325i cab.

On a gentle run could do mid-30s mpg.
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Sold: 1986 E30 325i Cabriolet, Alpine White :(
TheDutch
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Tue Aug 26, 2014 10:57 am

On more than one occasion I've achieved over 500 miles from the 55l tank in my 318is, mostly motorway.
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Rich320I
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Tue Aug 26, 2014 12:06 pm

380-400 from the tech1 per tank, that was mostly driving round germany the last few weeks
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