Yet another question for you all....
I seem to get about 275-280 miles out of a full tank of petrol is this good or bad?

It seems bad, but what do I know (though learning a grate deal from alot of people on this forum-very impressed)
Is there anyway I can improve my miles per tank?

When driving for about 20 mins my temperature is on the line under the 90
And oil pressure bar is on the line under 3 this means nothing to me, but probably a hell of a lot to you guys..

Thanks once again, advice hugely appreciated better still a coupe mechanic in Essex, even better! hehe

er, coupe mechanic in essex.... that would be rog at powerfiat! Linky

Pressure and temps sound ok. What's the pressure at idle? Shouldn't be below 1.5 bar.

oh and ref consumption then i cannot help as don't think i've driven the coupe sensibly for a tank's worth to give an accurate judgement. i just fill up when the light comes on!

Not great but the 16v are thirsty especially if it's lots of short urban trips rather than a decent m'way run...have you had the car checked out at all by a specialist? www.powerfiat.co.uk is your best bet

thankyou strike4a, not sure what the pressure is at idle, will look tomorrow when I get to work..

say these readings weren't ok-would they be causing me to use more fuel?
does my fuel consumption sound good or bad?

Hi Vickster, someone else said they are guzzlers, I thought the turbos would be, but I know nothing hehe..

Not had it checked by a specialist though not long ago had it in the garage for 3 weeks, had distributer cap done, idle speed valve, hose, pick up unit, rotor arm, its running soo much better less lumpy and not cutting out and admittedly petrol seems better than it was but didnt know if I could improve it still? Thanks

CG, it doesn't sound bad if it's in town. On a motorway run around the speed limit you should expect 33-36mpg on a 16v NA.

You should expect the temperature to sit between 70 and 90 after the first five minutes or so through town; the oil pressure should indicate *zero* when the ignition is on but the engine not running; 3 bar when the engine is doing 2000 rpm or more; and better than 1 bar - preferably 1.5 - when the engine is hot and idling.

If the temperature is slow to rise, or drops below 70 indicated on the motorway, then your thermostat is probably stuck open; this will make your car thirsty and should be fixed soonest

Neil

You gotta stop nailing that metal pedal

LOL @ jayzee, I cant afford to nail that pedal

That sounds pretty good to me! I do a 10 mile drive to work and do tend to cane the car somewhat and I'm lucky if I get 250 miles out of a tank. However, on the motorway I can get close to 350 miles.

Another good coupe mechanic is Perfect Touch in Hoddesdon. That's where I take my car for servicing. In fact PowerFiat won't even look at your can now unless you have a 20VT. I know this because I tried to book a service with them last year and they weren't interested. Too busy apparently.

poddible thermostat, mine was great on juice, then very poor.
all the best

When you fill up, how many litres of fuel are you actually putting in though before re-setting the odo to measure the tank full?! You might still have a good few litres in the tank when calculating the mileage, but then again, you might be running on vapour - everyones different.

just done 90 miles with 20 pounds worth of petrol not bad really.

So you've done 90 miles on around 5 gallons of petrol (22litres,at about 90p a litre)...that sounds dreadful as I would expect at least 25mpg even for urban driving - that works out at approx 18mpg I would expect 100 miles from around £15 worth

Are you being sarcastic or are my calculations way off?

The thing is folks... so many miles for this much petrol is always going to be a complete guess *unless* you go about measuring the petrol exactly.

Two ways to do it - keep a track of how much petrol you put in every time (even if you don't fill it) and total the fuel. Note the milage when you start and after your last fill... this is unlikely to be accurate unless you do at least a thousand miles and preferably three or four, but it gets better over time. Finally, divide total miles by total gallons to get mpg.

Alternatively, brim the tank and zero the odometer (frankly I don't see any point *not* fully filling the tank every time, but I know a lot just put in a tenner's worth here and there). Next time you fill up, brim it again and divide the miles indicated by the amount of fuel you just put in to get mpg.

This second approach is far more accurate since you know you've replaced almost exactly what you've burned, but it's not 100% - sometimes you may stop filling half a gallon early. It's rarely more than 5% out, though, but best of all is always brim, and total all your miles and all your gallons. Divide the one by the other...

Neil

Ditto here for the second approach.

For the record (I'll know better when my tank is empty) it looks like I'm getting about 5mpg better (on short distances not motorway cruising) since my thermostat got changed in January.

That's really bad, I'd expect you to get nearly double than mileage on that much fuel. Sure you don't have a fuel leak?! What sort of driving was that doing?!

I've got 430 miles out of a tank before, only because I was following my girlfriends dad though!!

yep im around 80ish miles on 20 quid with some quick driving.should epect way more from a na tho

At least 120 on £20 for me. Our VIS n/a does 140 on £20

i recently had the same problem 20v VIS model

240 miles to the tank (£51 ish fill up)

for my first and second quarter i was getting 90-100 miles but the last half of the tank seemed to drop almost every mile, to get 200 from the first half and just 40 from the second rang some alarm bells.

anyway people on here sugested thermostat and possible air sensor problem or maf sensor problem.

and after i checked i found that my induction kit was not on tight enough leaving a small 5mm gap at the top edge meaning ym engine was sucking in way too much air, and un filtered dirty air as well.

anyway i sealed that beauty up and i had an empty tank i put £15 in and i managed to get 105miles before i was REALLY needing to fill up, lol i reckon i could have gone maybe another 2miles max, and that was short runs and enjoying the right pedal a little too much

anyway looks as though i should be hitting 350 to a tank now ( i will let you know as soon as i fill her up from empty)

how would i know if i had a fuel leak. i havent been drving it mega fast and definatley not on a cold engine

recently had a service at motormech should they had pointed this out i know that it needs a new radiator might this me the problem?

I would have thought you could smell it. I had a leak around the fuel filter a couple of years back. The car stank of petrol!

ive got a petrol can in the back always thought it was that i could smell so a new fuel filter is needed? diy?

Take the petrol can out, wait a day or so and see if the smell goes away. It's unlikely to be the can though. I had the filter changed at my garage so I don't know how big a job it is. If you post a question in the Technical Problems section I'm sure someone will be able to help.

mine gets 350 ish to a full tank of opti, and i've been doing 800 miles a week recently

I get about 140 miles from £20 and that includes enthusiastic driving (16v NA).

My Rover 25 1.8L does about 170 miles on £20 and my girlfriends VW Polo 1.0L gets about 220 miles. My Mum has got a new Vauxhall Corsa 1.3TD and gets an amazing 305 miles on £20.