GU Fuel economy

Hi BBB, a mate is in the Noosa area at present on hol's total weight is 4500kg including CT, he has factory turbo and getting 16l/100 k's. 4.2 diesel.

Similar to you BBB,

regardless of weight (within reason) I tend to get 20lt per 100km which is 5k/lt. Take it easy??? Nah not me.

Trevor.

I would be p-ssed as nute on thos figures.Lol
Bob.

Our van would weigh more than your loaded, and we get 5 kms/ltr towing with 3 ltr, so you are doing OK. I have compared notes with stronger tow vehicles like F250s and the end result is not a lot different - towing a heavy van chews up the juice.

1999 GU Patrol, fully loaded in the back (no back seats at all), prospecting gear, with an extra 100 litres of fuel and an extra 80 litres of water in the back, towing a 2 tonne van.

The consumption varies between 5.5 and 6.2 kms/litre. I tow between 85 and 100 kmh - with the odd excursion to 120kmh ;)

The engine is 6.5 litre Chev V8 diesel and it doesn't seem to matter if yer towing, loaded or empty - it does the same mileage.

It's a typical truck engine.

The thing about small high revving diesels is that to get the power and torque to tow a largish van, you have to get the engine up the rev range. That's what chews up the juice. That's why there's a big difference between consumption towing and empty.

The old Chev truck engine just pulls loaded like it does empty. Same same.

My old TD42 Ford Maverick ute did about 24 MPG when empty and about 18 MPG towing a camper and fully loaded.

Bilbo

We have a 1999 GU Patrol 4.2 turbo diesel and towing the van got about 5klm per litre, we were travelling about 95/100 kph. Looks like yours is about right.

Cheers

D&B

Thanks for the feed back.

BBB

you blokes with the 4.2 turbo's are you towing in 5th gear? I have done about 40000 ks this year towing about 2.5 tonne and the patrol loaded using 5th gear and with what ive been reading am getting a bit worried.

With a non-turbo 4.2 Diesel I get between 17 - 18 litre per 100Km. Tried using 5th gear one trip and found it worse for economy and not supposed to be real good for the transmission.

i'm going to melbourne next wednesday so i might try just using 4th there and 5th back and do a check fuel usage.

member BBB, my temp sits about half way towing or not. those revs you quoting are really high, my revs at 110k are 2400 in 4th and 110 in 5th is 2000 +/- 100rpm