fuel consumption RB 30 NISSAN PATROL

Check out the Yahoo patrol group http://groups.yahoo.com/group/Patrol4WD/

Surely he has more of a chance getting a collective answer with 500 members in the patrol group.

What is wrong with yahoo groups????????????????? They are just ordinary people like you who have an interest in a particular vehicle etc getting together through the internet to chat about the thing they like most.

I agree with David from explore Oz , he asked the question on this site , so why not let him get his answers from this site
Cheers Dave

Ill post my info here this site is much easier to read and to get a reply.

Lets see Nissan RB30 with --
std 31" tyres you will average 15MPG - approx 18 lit/100km or about 5.3 km/litre (12.5 to 21mpg possible)
32" tyres - about 16 MPG - 17.3 lit/100km or 5.75km/litre(13- 24MPG possible)

Seems the RB30 revs a bit high at standard tyre sizes. AT 95-100kph on flat roads (ideal conditions) it can return 24 MPG but usually variety of conditions will pull that back th 19- 20 mpg

The donk is a bit underpowered at its max torque range approx 2200rpm it does very well with a set of extractors AND a free exhaust system should give at least 7% better economy if not 10%.
Responds very well to using premium unleaded and revving about 30% more than other motors.
This motor is a real NISSAN motor and as such is quite happy revving up to about 6000rpm.
At higher revs (3800-5600 rpm it has a powerband) the RB30 is a wolf in sheeps clothing literally will out perform many other 6 cylinder 4WDs simply because of its free high revving nature.

If you let it lug up hills and in the bush it can feel sluggish even runs out of steam in low second on steep hills - however it still has plenty of speed in low first cause it can rev high all day - If you could keep the fuel up to it- Most people wouldnt own one as it needs revs to really shine. Very few can bother DRIVING the vehicle to its potential (working it through the gears and hearing the motor rev) hence they have low resale value.

I quite like the RB30 because driven skillfully it will leave even GU4.2turbos and GQ 4.2 petrols struggling on steep slippery slopes - I exagetrate not - they are just harder work to get to perform.
Also gearboxes arn't quite as rugged as the 4.2s and lower geared.

Oh and yes Ive owned one and dont miss the change back to 3rd gear to get up some hills. Very rugged reliable and smooth motor.

Kezzzaaa

THANK.S VERY MUCH FOR ALL THE REPLIES,I APPEAR TO HAVE GOT 14.45 LTR PER 100KM TRAVELLING LIGHT AND 16.42 LTR PER 100KM WITH A 600KG JAYCO TRAILER BEHIND.IT APPEARS I'VE NOT GONE TO BAD FOR THIS MODEL,SPEEDS WERE TRAVELLED AROUND 90/100KPH.
REGARDS WAL

Your figures aren't too bad, but get the vacuum advance and weights in your distributor checked.

I recently had my vacuum advance replaced (and a tune up to suit) and can stay in higher gears much longer now. It's almost like a different engine to drive - much smoother (therefore more economical).

My engine has done 265000 km and is running better now than the day I bought it (135000 km then).

I've also put extractors and a 2.5 inch exhaust system on and find that helps. I also find an octane booster like moreys or using Premium unleaded helps increase power and economy.

I haven't taken it on a decent run since I got the dizzy done up, but previously the best I got towing a 1 tonne campomatic from Cairns to Mackay was 14.5 litres per 100 km and that was sitting on 90-95 when there was no traffic to hold up. I have 235/85R16 tyres (32 inch).

Worst figures was 26 litres per 100km while towing, doing 110km/h into a headwind between Cloncurry and Winton - I had 5 litres left in the tank when we got to Winton (this was before the extractors and free flow exhaust).

I once had a small hole in the inlet manifold gasket and that made it run like a dog.