Outer Limits 4x4 Board

Just wondering if there is anything I can do to get better fuel consumption. I have put my first tank of fuel in and will only get about 300-350 km out of it (40 litre tank) I haven't done much highway driving yet and that tank of fuel was mostly just driving around town. Is this normal????

Given that you would have had a remainder of fuel in the tank (ie was never empty when you filled it up, and was not totally empty when you filled it up for the second time) so that would be about 35 litres, km's travelled was say 350km, that gives you 10l per hundred kays - prolly about average, although a good tune and some parts will improve this, before you look at other things like air filters, extractors/exhausts etc.

I get between 10-11l/100km from mine on BP Ultimate 98 octane around the city.

The tank is actually 60 litres too, but it only seems to be useable to around 50 litres going by the gauge.

you should get 500k's to a tank. I generally always get that. Except when off-road driving.

If you're getting 10l / 100k then you've got good consumption 4by's with their volvo like aerodynamics and low diff ratios inevitably get worse fuel consumption than cars

Ok I am still gettin shit consumption. I just emptied the tank and only got about 360km to 44 litres! Yes I know that this is a 4wd and I shouldn't get to great consumption but really I would have expected about 450km to a tank!!!!! Is there anything I can do to get better consumption? My tyres are a bit bigger than average does this have anything to do with it? Would a good tune up help?

That works out to 12.2l/100km. I wouldn't necessarily say it's that bad or there's anything wrong. What sort of driving do you do- do you floor it everywhere, rev it hard, drive through hilly country, have the aircon on a lot, do a lot of heavy traffic driving? There are a lot of variables that can cause increased consumption.


Being EFI there isn't really anything to "tune"- you can check the timing is set correctly, check the airfilter isn't partially blocked and needs replacing etc. Possibly a stuffed Oxygen sensor (located just below the exhaust manifold in the exhaust pipe) could cause worse consumption.


You haven't got a petrol smell inside in the car at all have you?

No no petrol smell. I drive up the bruce highway every day (I do about 600km a week) I guess I just have to get used to the fact that the feroza isn't the corolla and I am not going to get 500km to a 35 litre tank.

The Bruce Highway doesn't mean much to me, but the consumption is high if it's mostly highway driving at 100km/h.

It could be worth climbing under it sometime and looking at all the fuel lines around the tank and in the engine bay to see if they look wet. And check your air filter- or just replace it if you're not sure when it was last changed.

The timing should be set at three degrees BTDC by factory specs(with the vacuum advance line blocked). Just be careful that you don't get detonation on hot days if you advance it, Ferozas have a habit of detonating at factory spec timing.

Ok well I am going to be getting a K & N Air Filter in the next week so hopefully that will make a difference.

that will make an improvement but with the figures you have told us it will not make the car that much better, you will be able to breathe a little easier and get a few more revs which may make a small improvement

When I went from the standard size, road based tyre to the bigger mud tyres I thought I had a problem... My fuel consumption went from about 10L/100kms to about 12l/100kms.

Another question, is the feroza fuel tank 60 litres or 50L.

Thanks

Dave.

Dave Fogwill wrote:When I went from the standard size, road based tyre to the bigger mud tyres I thought I had a problem... My fuel consumption went from about 10L/100kms to about 12l/100kms.

Another question, is the feroza fuel tank 60 litres or 50L.

Thanks

Dave.

I get about 45 litres in there before it comes out the top. I am not sure how big the tank is supposed to be.

Going by the manuals the tank is supposed to be 60 litres; either the gauges read low or not all of the 60 is useable. The most I've ever managed to fit in mine when refilling is around 50 litres.

I had my K&N on for about a tank full and it did seem to improve the economy a bit. I've got the standard canister back on now as I did some dusty track driving last weekend and haven't got around to refitting the K&N.

I've been keeping fuel records since I bought mine and have covered around 9000km, so it's easy to see what mods change the consumption.

Get a 10L drum of fuel keep it in your car and run the bitch dry.......... then get out put abit of fuel in (enough to get you to a servo) fill the car up to the first click then stop...............note down how many litres went in and make sure you have the 10L drum refilled, drive it till she runs dry again and you should get a fairly good fuel consumption guide and idea of tank size.

Check the underside (of the the tank) for dents a fair dent will reduce your tank capacity.........not my much thou

I AM HUNGRY

In my Feroza, I just follow the correct engine settings e.g. tune up like valve clearance, clean carbs, correct timing ignition, correct spark plugs.

And I use a Simota air Filter similar to K&N.

Also on tires I used the maximum recommended size 225/70/R15 tires.

My consumption on traffic here in Metro Manila traffic is 10km/l on hi-ways like going to Baguio or downsouth it ranges 13km/l to 15km/l.

with the cat converter removed and a coby free flow exhaust system I return an average of 9L per 100km (plus have about 25% more power to boot) I'm aware that removing the cat is illegal in most countries which is a pity because it does make a huge difference to power and economy.

Kell, you have corrected your consumption for the increased tyre size, right?

If you have a 5% taller tyre then knock 5% off your fuel consumption to correct for the speedo error.

I agree that 10's should be about right, but use will vary this enormously.

Steve.

i get 24 mpg on my 1990 usa rocky 1.6 liter gas. it has the cat removed and fuel line magnets(gave me a measured 2 mpg) ngk iridium plugs

other than that its stock 230,000 miles with 215/75/15 tires

if u want good fuel economey leave it parked on the drive