4.0 petrol vs v8 petrol

[Summiitt]

Does anyone have experience with the 4.0 petrol disco 3s? A friend is in the market for a disco 3 and for the amount of driving he does, can't justify the price premium of the diesels. I heard that the 4.0 motors were abit of a dog, not only thirsty but not that responsive? Is the v8 a better motor to look for?
Thanks for your advice.

[BigJon]

A friend of mine has a 4.0 V6 Disco 3 and he is very happy with it. Mostly country driving returns acceptable fuel consumption and the times I have driven it (after servicing it) I was quite impressed by the get up and go it diplayed.

[Ashes]

We've had out 4.0 petrol for around 3 years (2006 SE model) and no real complaints about the engine. It certainly isn't the fastest vehicle on the road but we didn't buy it for it's acceleration or top end. A bit thirsty, probably, but we also didn't buy it for it's economy. You will not get a fast and economical LR no matter which model you buy. You will however get a great 7 seater with brilliant on road comfort and off road ability.

[Mutley0]

We went through this when we bought our D3. The price difference between the petrol and diesel pays for a lot of petrol given the differences in consumption. I realise that there is a difference in power delivery but I couldn't justify the differences given the price premium.

We ended up purchasing a V8, as everything I read said that the V6 was a little underpowered especially if you were going to be towing. On long trips our fuel consumption as displayed on the car computer has been about 12.5 l/100Km. Yeh if you give it the boot the fuel consumption skyrockets, but I suppose in the end it depends on how you drive.

So far we have been very happy with the V8 and has plenty of power for towing too.:)

[Epic pooh]

When I bought my D3, I drove all three engines and decided to go with the V8 - from my research I came to think that the V8 had very few issues and that the real world fuel consumption wouldn't be much different to the V6. Also after a driving a few, I came to realise that the V8 sounds beautiful when you give it a bootful (particularly on the high side of 4000rpm ... mmm ...). I don't regret the decision at all !

On a long trip I get similar econ to Mutley; around town short trips & bootfuls the worst is about 20l/100km. Driven consistently my overall average is about 16 - which is surprisingly good considering weight, aerodynamics, driving style etc. For economy perspective, friend of mine has 100 series 4.5 manual Cruiser which returns about 22l/100km as an overall average and doesn't go anything like the disco.

I think the additional power/torque of the V8 is useful if you do much high speed driving. And the sound of the V8 in low range when you're doing some bush work nicely compliments the sounds of nature ... hahaha !

[WhiteD3]

I had a 2007 V6 SE for just over 4 years and a 100K. At the time of buying I couldn't afford or justify the 18k price jump to the TDV6.

Economy was around 16 in town with a very light foot and 10's on the highway. Acceleration was fine but you paid the price in economy if you use a lead foot.

If I had a complaint it would be range. 650 hwy, 450 around town.

Nothing wrong with the engine and the good thing is/was it's low tech compared with the TDV6 and less to go wrong.

That said, we did a lot of trips and it was a great car.

[sniegy]

Both very good vehicles & if money is around the same price, in my experience go the V8.
I had one for a 3 week trip in 2007 & was astounded by the fuel economy (9 country roads & 13 city) driving the Great Ocean Rd. To Robe & beyond.
I have a client that purchased one of the first V8 HSE's & has now travelled over 320K Km's with no engine related issues whatsovever. Just regular maintenance. He also uses his vehicle off road & is set up with ARB bar & rear wheel carrier etc etc.

I think the V6 runs out of breath at times, this also depends on what the owner wants to do, does he intend on towing?
With the V8 if he needs the extra power at least it is there.

Cheers

Sent from my iPad using Forum Runner

[TerryO]

Having driven D3's with all three engines I'd say the V8 is smooth, quite and powerful, the V6 is noisy, vibrates and lacks power and as reported elsewhere it isn't as economical as the V8.

I know not many people would agree with me but as I have said previously if I had my time over again I would purchase a V8 instead of the TDV6.

cheers,
Terry

[WhiteD3]

I agree, but if money is an issue then IMHO the V6 is a good car and cheaper by far than the V8 or TDV6. Do some math on the economics and the V6 make sense (unless you're towing :))



Having driven D3's with all three engines I'd say the V8 is smooth, quite and powerful, the V6 is noisy, vibrates and lacks power and as reported elsewhere it isn't as economical as the V8.

I know not many people would agree with me but as I have said previously if I had my time over again I would purchase a V8 instead of the TDV6.

cheers,
Terry

[Prokiwi]

If you do the sums properly the diesel will far outweight the petrol , both in economy ,resale etc etc . I was a Fleet analysist in a previous life and have done the sums over and over again....

I get 6.9L on the open highway at 110kmh and around town I do 11l/100kmh . My long term average is 8.9l/100kmh.

I drive a 2012 RRS 3.0L v6 diesel. I have also had the ecu reprogrammed by superchips and now I have power to play with as well as a smooth ride.

Petrols are fats becoming old school both in technology , economy and resale..... oh and by the way , i can beat a landcruiser sahara v8 turbo diesel off the lights and up too 100kmh every time ..........LOL

[grumpa]

I've had my D3 V6 Petrol for nearly 3 years with no engine or transmission problems. It IS thirsty around town but good (11-12L /100Km) on long trips, fully loaded and with an ARB bar. It is VERY comfortable; it is VERY quiet - everyone who has travelled with us has commented on how quiet and smooth it is. Without doubt, the best car I have ever driven. However, IF I had the dollars I would like to go to diesel to improve the range it has.
Grumpa

[townse]

I have had my V6 for five Years. I had a Haltech chip fitted by graham Cooper in Sydney. On a trip fully loaded four passengers and luggage to Queensland 2580 km and averaged 10 litres per 100 km. Also did a six week trip up north with a 3 ton caravan and averaged 18 litres per 100 over 4500 kms.Great car and much cheaper than a deisel.

[TerryO]

If you do the sums properly the diesel will far outweight the petrol , both in economy ,resale etc etc . I was a Fleet analysist in a previous life and have done the sums over and over again....

I get 6.9L on the open highway at 110kmh and around town I do 11l/100kmh . My long term average is 8.9l/100kmh.

I drive a 2012 RRS 3.0L v6 diesel. I have also had the ecu reprogrammed by superchips and now I have power to play with as well as a smooth ride.

Petrols are fats becoming old school both in technology , economy and resale..... oh and by the way , i can beat a landcruiser sahara v8 turbo diesel off the lights and up too 100kmh every time ..........LOL



All of what you have said is fine when purchasing a new vehicle with 3 to 5 years warranty, but this gentleman is trying to figure out what is the best secondhand model to buy, more than likely without factory warranty and on what sounds like a restricted budget.

Diesels are great but check out how many TDV6's have failed compared to V8's, this is a potential issue if you are purchasing a vehicle with no warranty. Can anyone even remember someone on here ever mentioning about a V8 that has blown up?

Plus when new the V8 was more expensive than a TDV6 so it may have made financial sense then, now the opposite is true by on average by about 5 to 10k. That's a lot of fuel you can buy and then on top compare service costs of both and the V8 starts to make a lot of sense.

Congrats on 6.9 litres per hundred that is pretty impressive, I do alot of country freeway driving and best I can get from our 2.7 is on average between 10.5 and 12 litres per hundred on the highway at the posted speed limit.

cheers,
Terry

[Roger]

I had a D3 2009 V6 SE and it was (is) a great car. I bought it due to perceived $ savings over the TDV6. It served me very well, thirsty, fuel quite costly, especially as recommended fuel is premium unleaded. I was warned by the dealer that if towing I would be stopping to fill it often, and they were right on, however, I would buy one again as it was the right decision for the dollars at the time and served my family, business and I extremely well. I now have a D4 TDV6 3L, and I have to say its impressively better, I am blown away at the minor and major improvments and the amazing performance of the 3 litre deisel. It hardly notices my caravan, so much so I have to be careful not to over do it! D3 Petrol, loved it - a great starter for the LR Disco addiction! Its not a mistake, its just a choice. As far as V6 vs V8. I have no direct LR V8 experience, but I do know that if the gear box is correct/matched for the V8, the engine should run easier. I have owned a non LR petrol V8 in an SUV and its fuel consumpton under heavy load was less than its V6 sibling, but around town, it was a wallet killer and the V6 was better.

[Summiitt]

Wow, interesting to see the differing opinions, seems that the people who have owned the v6 quite like them,likewise the v8s..my mate will not be doing any towing, but regular trips from Canberra to armidale with kids and all of the luggage that that involves, as well as the odd weekend out bush, total yearly mileage would be no more than about 15k/yr.Thanks once again for the advice.