Thread: Diesel Vs Petrol

if you skew the facts enough hes correct.

when im abusing and towing heavy with big red the fuel return is actually worse than a very well driven 3.9l v8 disco1

some are more expensive to service and occasionally a service needs more expensive parts (injectors vs sparkplugs) but look at how long a set of injectors lasts vs a set a plugs.



but my money is on someone whose bought a v8 something and has found out that he cant support its drinking habit with his driving style.

Replacement for a one year old car what sort of w.....*self edited*

Fuel consumption with petrol engines varies much more than it does with diesels, for example between city and country driving, so any comparison can be slanted according to what you want to prove.

But fuel cost is not the only consideration. Even 20% better economy translates straight into 20% longer range, which can either mean not carrying extra fuel or simply in town mean more choice where and when to buy it.

And even if servicing is cheaper for a petrol engine (is it?), as a general rule, diesels are more durable.

But - what is the biggest cost in running a vehicle? No, it is not fuel. It is depreciation, by a long way (usually at least twice the cost per kilometre that fuel is). Now as you may have noticed, "V8" is a dirty word when trying to sell a second hand car. Yep, right - depreciation can be expected to be a lot more on a V8 petrol. In general, this will swamp the relatively small difference in fuel costs. (and does this perhaps suggest why he is talking about it anyway?)

John

I do agree with the add to some point. As I am selling my V8 disco and this is the pitch I have used to sell mine also. I have just returned from a trip to cape york with the disco and am very happy with the fuel economy.

Here are the stats.

9650 kms

1351.00 litres of fuel used

$2528.00 cost of fuel

=14 liters per 100.

I had 3 people, full lenth roof cage fully loaded, tools,spares, (very heavy)

We did the OTT, frenchmans, plus many other tracks and farting around but mainly highway driving at 100 kms I have big tyres and bullbar, winch, dual batt and lots of other stuff.

Mine is a D2, So driven the right way a V8 can be cheaper to run than a diesel but this does depend on your driving style and what you are doing with it.

A mate did the same trip last year with his TD5 and I think although he would have had better range the cost of diesel on his trip and mine petrol was only about $200.00 dollars in his favour, but I will check with him on this again. Plus a $900 dollar dealer service oposed to my $400 service before we left.


Will

I dont want to start a war but I cannot sit around and see a statement that diesels are generally more durable without adding what I reckon is relevant clarification - modern petrol motors are just as durable as modern diesels. Go back 15 years to either naturally aspirated Diesels or the first of the turbos in 4wd and yes they were in the main more durable than petrols - usually posting considerably more miles. Petrol motors these days are getting built to do more miles and the TDs are getting built to a weight and economy factor that reduces there miles. The modern ford transit TD in the deefer is built as a 250,000 mile engine. A disco V8 properly serviced with its chrome molly bores will do that.

BTW when its time to re-co a modern diesel (which often means replace entirely) the costs are unbelievable - you could do the petrol 3 times over in many cases compared to recoing one diesel. The modern diesels are too light for the massive combustion pressures and run modern electronics that are very expensive - eg ceramic piezzo injectors (at $1500 + per injector). They are not high mileage engines compared to the old ones.

I can see that some poor buggers will buy modern 4wds with TDs and the motor will blow (like is happening to many prados that are now 4-5 years old...) and the cost of the replacement motor will be so high that it exceeds the cost of buying a whole new vehicle with a good running engine in it of the same type. Can you imagine that feeling.

Cheers

I posted my figures on LPG V8 in another thread yesterday...LPG V8 is considerably cheaper even counting the LPG install costs (which still see the diesel purchase price higher than petrol with LPG) than diesel....and dont even go to the aural aspects.

Cheers
\
PS. Can someone pls pass the popcorn

Originally Posted by DirtyDawg

Replacement for a one year old car what sort of w.....*self edited*

My son put the Disco into a couple of trees, assorted shrubs and a couple of
fence posts. Fell asleep at the wheel with crusie control set at 100kmh.

Hence the need for a replacement. . .

Why don't trucks, diesel electric trains, buses, big generators etc use petrol engines?

Is it true the Renault, Peugeot and VW diesel cars have a comsumption of around 5L/100 km? Do the petrol models have similar mileage?