Thread: Which engine for towing?

Also worth considering in all of this are the other components, such as driveline, if their all the same no, problem.
However are the transmissions the same? if not what's their rated max continuous torque, how much margin of reliability when towing?
Having a smaller engine running high boost all day in 40C might be OK but how hard is the trans going to work?
Additionally high boost means high fuel, no matter what size the engine the conversion of fuel to energy/heat is still the same.
As someone said previously there are no free lunches.
Anyway good luck with your choice I am sure you will be happy which ever way you go.
Cheers.

Originally Posted by DiscoMick

That would make your vehicle illegal, like VW's cheat software, which could have registration and insurance implications of it was ever found to be relevant to a claim.

Any vehicle, without working egr , or a 50 mm lift and bigger diameter tyres with no certificate would be included , as would any vehicle with a remap . my sympathies are more bias towards the mechanical than the bureaucratic...... But then a mechanic is my trade after all

Originally Posted by BobD

The other issue with all the new LR diesels is having to use Add Blue. It must be refilled using a few 1.9l bottles costing $16 a bottle.

Only $1.00 a litre.

https://www.google.com.au/search?q=a...A6Lr8AeTg6rgBg

Or just buy the urea and mix a 37.5% solution in de ionised water.

https://www.bunnings.com.au/richgro-4kg-urea_p2982917

https://www.bunnings.com.au/diggers-...water_p4460953

You need 10L of Adblue?

so the water is $7.81 and the urea is $11.23 Hmm, not cost effective.
Buy it from coles express- Shell.

The bottles that you have to use to fill the AdBlue, at least on a DS and from what I hear from the parts guy on every other LR, are $16.00. I will not be doing that. I am trying to find a way to fill it using the readily available cheaper stuff but the only way I can see is to do it 1.9l at a time by refilling a LR bottle with the cheaper stuff. An absolute pain and enough to put one off Land Rover for ever!! I can't imagine doing this with 5 or 10 bottles slowly filled at a bowser and then screwed onto the filler. Ridiculous.


Edit: The DS hold 13.7l of AdBlue.


The parts guy told me that it "should" be possible to refill a bottle but he doesn't know for sure. I will try it before my next refill. On my car the maximum distance I could have done before refilling it was 5500km, so on a long trip in a RRS or D5 it would be extremely annoying. Apparently, AdBlue must not be stored in the car so what you would do in a remote area I don't know.


By the way, according to YouTube, purchasing these AdBlue bottles at a servo in the UK costs 10 quid, so no cheaper there, even from a non dealer.

Originally Posted by discorevy

V8 commodore ? OK then
V8 commodore 1700 kg drag coefficient 0.31 , 6.2 v8 , torque 570 nm , average 12 l / 100
Discovery 4 2700 kg drag coefficient 0.4. , 3.0 v6 , torque 600 nm , average 10 l / 100
Wonder what the 6.2,s fuel consumption would be if it was in the disco ?
I love a v8 petrol as well but they are not efficient and also don't put out as much in the heat , that's just to do with air density, the new generation of Brit and euro diesels are incredibly efficient , modern metallurgy also makes them reliable , sequential turbos deliver the torque smoothly , whichever way you look at it turbo diesel is what you use for hauling stuff and 500 nm is enough for the op's requirements when you consider the 400 + kilos weight reduction on the disco 5

What?

I was pointing out the V8 Commodore returns similar fuel figures to a V6 Commodore, not comparing a turbo diesel in a Disco with big cubes in a sedan. Indeed, If I was comparing petrol with diesel I'd be looking at Discos, Range Rovers, or similar. I can also claim (with the figures to prove it) that in day to day running, predominantly peak hour up hill/ down hill that the V8 Commodore is the only car I've owned (actually 2 of them) that does better than the claimed fuel consumption.

And I'm not sure about your claims about natural v forced aspiration in the heat. My last VE V8 showed absolutely no power loss during 44 degree days. My current twin charged car and the D3 both show reduced performance on hot days.

If I'm towing I want as much power, specifically torque, as I can get. The bigger motor will provide that irrespective of petrol or diesel, forced or natural aspiration.

Say what you like, but explain why there is such a strong aftermarket in remapping, even this forum there are regular posts on getting more from motors for towing.

Originally Posted by OzV8

This may sound like a stupid question but, given that there is quite a price difference between the SD4 and the TD6, what are people's thoughts on the suitability of the SD4 for pulling a 22ft van with tare 2200kg? (ATM 2700 kg IF 180 litres of water on board).

I'm guessing that if a 2 litre Amarok has no issues then a SD4 won't either.


I'd like to get the SD4 and spend the $7k saved on fruit. Cheers.

I've read a review that said the 4 cylinder felt relatively underdone compared to the 6, and that economy gains were lost cos it had to work harder. But I'm sure the 4 would do the job - it's still impressive figures and only a tad meh compared to the 6.
I was hoping the 4 would be amazing, as it allows for a higher vehicle payload.

I tow a 1.3 tonne caravan with my TD4 Disco Sport. Handles it with no problem at all. Even going up long steep hills, like the road from Skenes Creek to Forrest, off the Great Ocean Road near Apollo Bay.

My previous car was a D3 V8. Quite different, but also handled the van easily.

Originally Posted by BobD

The bottles that you have to use to fill the AdBlue, at least on a DS and from what I hear from the parts guy on every other LR, are $16.00. I will not be doing that. I am trying to find a way to fill it using the readily available cheaper stuff but the only way I can see is to do it 1.9l at a time by refilling a LR bottle with the cheaper stuff. An absolute pain and enough to put one off Land Rover for ever!! I can't imagine doing this with 5 or 10 bottles slowly filled at a bowser and then screwed onto the filler. Ridiculous.

I have now bought 2 of the 1.9l bottles of AdBlue and they are easily refillable, so I will be able to use the bulk supplies to do that. I just wish that LR provided a filler which enables filling from a pump, like other manufacturers do.