Ford 5.8l-fuel consumption

Quite high!

sounds like it would be an old F-series truck converted to an ambulance body which would make it rather heavy. Add the trusty old 351 Cleveland V8 and 3 speed auto to that mix and it will be sure to gobble the juice. If its anything like 351's I have had before, it will use sometimes well over 20L/100

You could get it gas converted to make it easier on the hip pocket.

Hi onemore,
A 351 Cleveland Auto, Hmmm Thirsty bugger, but that depends on how heavy your right foot is and how sweet the exhaust sounds,

I've got no idea how much they weigh, what the diff ratio is or what size tyres it is running. It's not on Gas is is it?
I use to have a XW 351, 4V heads, 30/70 cam, square bore 600cfm Holley(55 power valve, 75 jets), C4 Auto with 2.75 LSD disc brake rear end, 14x7(F) 15x8(R) mags with Goodyear Z 245, 45 series tyres that would get close to 5kpl.
Is she in original condition? and does it have the original carby on her? If it has, it would be a Thermoquad, which, when tuned correctly do work well, but a 600 Sq bore 4 barrel Holley would give better economy, while still giving good performance.
They are a good old truck.
But as Road Warrior said, they can be thirty.

Ask Member Trevor QLD as he has an ex ambo ;)

I'll flick him an MM to alert him to this thread.

I would say they have better fuel economy than a 4.2TD Missan Patrol as he has 2 of those as well and is always complaining that they are thirsty hehehehe

Cheers Kev

gooday ,
just to clear up the confusion , if its an 86 build date it will be a 5 lt , the 5.8lt
didn,t come in till 1990 . the f/series was the only vehicle in fords line up to use that engine , and it was calibated for US fuel , thats why you hear so much about the running problems . the reason for the pour fuel economy is its not
sequential injection , it fires 4 injectors at a time.
even on gas it will use plenty .
mechpete

We used to have a 1991 F150 4x4 XLT - 5.8 windsor EFI, auto with dual fuel.

Typically used to achieve 4.9 to 5.3 KPL on ULP and 3.5 to 3.8 KPL on gas.

It could pass anything on the road - except a servo! Certainly liked a drink or three!

Convert it to Gas, I think 20L / 100 is being kind, i would think more than that especially once the vehicle is laden.

The US government fuel economy data for US-market vehicles back to 1984 is available here. You can't pick "van" for pre-1994 cars, but you can pick "Ford", "8 cylinder", etc - when you get the results they will be in statute miles per US gallon; click the "liters/100 km" over on the right to change that.

You probably are looking at an Econoline 250 (E250) base van chassis; running a search reveals a V8 5.8 liter 3-speed automatic at 23.5 city, 19.6 highway, 21.4 combined (all liters/100 km).

These numbers are determined on a standard "city" and "highway" drive cycle. The drive cycles changed a few years ago, and all the numbers for model years before that time have been adjusted to try to reflect the new drive cycle. The "combined" number is a mix of the city and highway numbers.

These numbers are going to be for what a consumer could buy from a US Ford dealer at retail, and probably reflect an 8-passenger van (two bucket seats up front, two 3-across bench seats in back) or maybe a 2-passenger cargo van (two buckets up front, nothing in the back). Ford would have offered more options to the ambulance builders, including different transmission and rear axle ratios, heavy-duty suspension, and other things that are good for an ambulance but tend to make it suck fuel. This also means that it might not be sufficient to go to the auto parts store and ask for parts for an '86 Ford E250; it is probably a good idea to bring the old part with you to make sure the new one matches.

Also, these numbers are for a new car (or maybe one with a thousand or so miles on it; I think the government allows some break-in/running-in time) with everything working perfectly; 25 years later it's gonna use more.

I hope this helps!

MattR