Thread: RRC Fuel consumption comparison

Originally Posted by superquag

Interesting what a 'proper' compression ratio and sensible cam will do.

One wonders why LR engineers missed this one...

congratulations !

5sp manual helps, smaller displacement helps, higher compression helps. I know another owner of an old carby 2 door with overdrive that would record "best ever" fuel consumption of about 10km/litre.

I was discussing fuel economy with a neighbour and my 17 litres/100km on the 93 auto 3.9 V8. He said his 2.2 petrol manual toyota people mover can drink 14 litres/100km when driven the same way.

RRC with lift lockers, 35-37 inch tyres....

best 15.3L/100
worst 37.9L/100
averaging 22L/100

RRC 4.2 r380 lt230, flapper efi steel bars, long range tank 31s.

stats from 3years of a combination of town & long distance Rocky to Sydney & back/Rocky to Darwin return). sometime towing (box & car trailer) etc.

best 13.47L/100
worst 42.02L/100
average 20.75L/100

on trips its better.
Sydney trips (going inland)
best 13.47L/100
worst 19.48L/100
average 16.44L/100

Darwin trip
best 13.59L/100
worst 18.46L/100
average 16.72L/100

Haven't had the vehicle long, but mixed cycle driving I'm getting around 19.8L/100km
only filled it up twice so far.... haven't done the interstate trip in it yet.
Might be taking a couple of spare jerrycans though at this rate.

The 3.9 are much better on a long trip on flat ground.

The official 75MPH constant speed rating for UK ones which were high compression was AFAIR 20MPG which is about 15L per 100 and about 19L urban.

If you do much better than that you are doing well.

Regards Philip A