318iS - 40mpg on 1700 mile trip.

[tomstickland]

Just for "fun" I noted all the mpg on a trip I've just done to the South of France.

This is based on driving at a near steady speed on motorways, though I did slow on large hills to keep the indicated instantaneous mpg above 30mpg

Mway at 70mph, plus 10 minutes at around that plus 30: 39mpg
Mway at 70mph, being very careful: 42mpg
Cross country and around half a tank on motorway at 70: 39mpg
Mway at 85mph indicated, slowing on big hills: 37mpg

I'm just finishing off the last tank, which included a long session driving with little regard for fuel economy, I'll update on that soon.

I'm very impressed with these results - this is in a 1990 BMW 318iS with 220,000 miles on the clock.

There's about a 5mpg improvement in reducing the speed from 85 to 70mph, which is a 13% improvement for driving around 13% slower.

Just for fun, I worked out that at 70mph it's costing 15p per minute and at 85mph it's 21p/min. Obviously at the faster speed less minutes are spent, but as I was sat on the road for 14 hours yesterday, I did wonder what the cost per minute was.

[Simon13]

Tom the car was built june 91!

i managed 420 miles to a tank once in it going to swansea and back from camberley plus some mixed driving after for a few days

[pacerpete]

Enjoy it while it lasts, i'm not fixing it again next time it sh1ts itself !

[ShepsEvo3]

Looks like you had alot of "fun"

[tomstickland]

You're right, I had a lot of fun. Even driving it quite conservatively it's a very satisfying experience. I also did about 2 hours of B road mayhem in the Jura in the middle of that.

[gareth]

my M30B35 powered touring managed a £/mile equivalent of 57mpg on petrol on the trip to the nurburgring recently. gotta love LPG
hastings to nurburg on less than £30

[pacerpete]

my M30B35 powered touring managed a £/mile equivalent of 57mpg on petrol on the trip to the nurburgring recently. gotta love LPG
hastings to nurburg on less than £30

Never mind the fuel economy, feel the handling balance !

[gareth]

handling was very good thanks
it certainly outhandled a few 'superior' machines and was only let down by my lack of talent..... and bravery!

[Dave_M3]

ah ya, but you had to get all sorts of things to achieve it like coilovers and the like

57mpg is fecking great!

My iS got the equivlent of 45mpg.....once

[M5pilot]

Who needs a deisel!

My Audi A3 2.0 Tdi (Yes I know, I am a defector) doesn't do that much better. It does have 350+ lb.ft torque and 180 bhp though

[Simon13]

Who needs a deisel!

My Audi A3 2.0 Tdi (Yes I know, I am a defector) doesn't do that much better. It does have 350+ lb.ft torque and 180 bhp though

so ultimatley it's still as slow as a good 325i in a straight line! it's the BHP that counts!

[78dude]

Who needs a deisel!

My Audi A3 2.0 Tdi (Yes I know, I am a defector) doesn't do that much better. It does have 350+ lb.ft torque and 180 bhp though

so ultimatley it's still as slow as a good 325i in a straight line! it's the BHP that counts!

Hey, not so hard with the language Simon! I need to arest you there!
You still missing a V8 Sir!