Petrol V Diesel

**buggerlugs** · 22-07-2008, 07:49 PM

Driving home from work tonight and you could get unleaded for $141.9 per litre and Diesel was $178.9 per litre. WTF ???? I have 2 diesel vehicles. How can there be so much difference in price ?? I'm on the Sunshine Coast in Qld.....

Daymoe · 22-07-2008, 07:58 PM

Diesel is $1.89 down here in Vic in my country town.

burnz · 22-07-2008, 08:11 PM

yes it's wrong as diesel is a byproduct just like grease.

BadMac · 22-07-2008, 08:22 PM

Multiply the cost of Diesel by the difference in efficiency between a diesel and the equivlant petrol engine and you will find even at those prices the Diesel is cheaper to run.

Martyvan · 22-07-2008, 08:36 PM

Badmac, agree 100% and because of the price of diesel the bottom has dropped out of the diesel market (2nd hand) and you can get some good bargains at the moment

ILLaViTaR · 22-07-2008, 08:42 PM

Quote:

Originally Posted by BadMac

Multiply the cost of Diesel by the difference in efficiency between a diesel and the equivlant petrol engine and you will find even at those prices the Diesel is cheaper to run.

Why does everyone say this? And agree?

maybe when it was 10 cents dear but not with a price gap that high.

Of course it depends on the car too.

Martyvan · 22-07-2008, 08:52 PM

Quote:

Originally Posted by ILLaViTaR

Why does everyone say this? And agree?

maybe when it was 10 cents dear but not with a price gap that high.

Of course it depends on the car too.

Also remember, that Diesel cars are much easier to get closer, or less than their quoted fuel consumption sticker number...

Petrol can go pear shaped pretty quick sitting in traffic...

and in 4wd's it would take Diesel to be almost double the price for it, to NOT be cheaper to run in the longer term......

**Falcon Coupe** · 22-07-2008, 09:02 PM

Quote:

Originally Posted by ILLaViTaR

Why does everyone say this? And agree?

maybe when it was 10 cents dear but not with a price gap that high.

Of course it depends on the car too.

As a rule of thumb, a diesel car in the same category as it's petrol opposition uses 30% less fuel.

4Vman · 22-07-2008, 09:26 PM

Quote:

Originally Posted by Falcon Coupe

As a rule of thumb, a diesel car in the same category as it's petrol opposition uses 30% less fuel.

And surprise surprise about 30% dearer.. the days of diesel fuel being a better option for cost savings is all but gone.....

BadMac · 22-07-2008, 09:30 PM

Quote:

Originally Posted by Falcon Coupe

As a rule of thumb, a diesel car in the same category as it's petrol opposition uses 30% less fuel.

I just checked up on mine and on the published figures theres a 32% difference, so you are on the money.

Given the 1st post costs, the difference is only 21% so you are still better off with the diesel by about 9%.

ILLaViTaR · 23-07-2008, 02:42 AM

Quote:

Originally Posted by Falcon Coupe

As a rule of thumb, a diesel car in the same category as it's petrol opposition uses 30% less fuel.

Our Patrol would work out to that however there's more than a 30% power loss.

**thefargo** · 22-07-2008, 08:42 PM

Quote:

Originally Posted by burnz

yes it's wrong as diesel is a byproduct just like grease.

just like petrol is a byproduct of aviation fuel

burnz · 22-07-2008, 08:43 PM

Quote:

Originally Posted by thefargo

just like petrol is a byproduct of aviation fuel

tuchaue

Rodp · 22-07-2008, 08:50 PM

Quote:

Originally Posted by burnz

tuchaue

:

**cs123** · 22-07-2008, 10:21 PM

Quote:

Originally Posted by thefargo

just like petrol is a byproduct of aviation fuel

???? Jet fuel requires less refining than gasoline.

scottmeister · 22-07-2008, 11:36 PM

Jet Fuel, whilst kerosene based, requires just as much refining as petrol and diesel. It needs to have anti-freeze, anti-smoking, anti-static properties, as well as obligatory additives to inhibit corrosion, gumming, and aid lubricity, not unlike diesel. Note that "refining" persay is simply a process of isolating/separating and purification a substance into specific components free of contaminants, then with reference to most fuels, addition of various additives specific to the purposes. Hence, no fuel is really a by-product of the other; they are all specifically isolated and utilised from a base substance.

:

Need_a_V8 · 23-07-2008, 05:50 PM

Quote:

Originally Posted by burnz

yes it's wrong as diesel is a byproduct just like grease.

lol at what point does petrol then become a by-product of diesel?

7 out of every 10 vehicles sold in India, run on diesel. Over the last fiscal year, India's diesel consumption went up by 10% which is the equivalent of an entire YEAR's worth of diesel from 3 Australian refineries.

China's INCREASE alone in diesel consumption is equivalent to an entire years worth of Australia's production of diesel.

India and China cannot sustain their own use, they don't have the resources, so they are importing more and more diesel. It all comes down to supply and demand.

With countries like India having 7/10 new vehicles run on diesel, how long is it before both India AND China are using MORE diesel than petrol? When that time comes, petrol will effectively become a by-product of diesel. As India and China grow, diesel is going to become increasingly expensive, and the gap between petrol and diesel in price is only going to increase.

vztrt · 23-07-2008, 06:53 PM

Quote:

Originally Posted by Need_a_V8

lol at what point does petrol then become a by-product of diesel?

7 out of every 10 vehicles sold in India, run on diesel. Over the last fiscal year, India's diesel consumption went up by 10% which is the equivalent of an entire YEAR's worth of diesel from 3 Australian refineries.

China's INCREASE alone in diesel consumption is equivalent to an entire years worth of Australia's production of diesel.

India and China cannot sustain their own use, they don't have the resources, so they are importing more and more diesel. It all comes down to supply and demand.

With countries like India having 7/10 new vehicles run on diesel, how long is it before both India AND China are using MORE diesel than petrol? When that time comes, petrol will effectively become a by-product of diesel. As India and China grow, diesel is going to become increasingly expensive, and the gap between petrol and diesel in price is only going to increase.

The other bad thing is that the fuel is subsidised by the government over in India and China. In India Diesel is 34 rupies/L (1AUD = about 40 rupies). China is about the same.

Mind you the wages are much lower then Oz as well.

Rodp · 22-07-2008, 08:49 PM

Quote:

Originally Posted by buggerlugs

Driving home from work tonight and you could get unleaded for $141.9 per litre and Diesel was $178.9 per litre. WTF ???? I have 2 diesel vehicles. How can there be so much difference in price ?? I'm on the Sunshine Coast in Qld.....

Geez, I don't think I'll ever holiday on the Sunshine Coast. $141.90/litre?!?

$7750 to fill my car!

:

**buggerlugs** · 23-07-2008, 01:08 PM

Quote:

Originally Posted by Rodp

Geez, I don't think I'll ever holiday on the Sunshine Coast. $141.90/litre?!?

$7750 to fill my car!

:

Why do you think I was cranky !!!! $1.41.9 cpl . It's safe to holiday now, although it is raining at the moment

Rodp · 23-07-2008, 02:57 PM

Quote:

Originally Posted by buggerlugs

Why do you think I was cranky !!!! $1.41.9 cpl . It's safe to holiday now, although it is raining at the moment

Geez, if it's not the petrol prices, it's the dishonesty in the name! Is the Sun at least out when it's raining?

vztrt · 22-07-2008, 08:56 PM

Quote:

Originally Posted by buggerlugs

Driving home from work tonight and you could get unleaded for $141.9 per litre and Diesel was $178.9 per litre. WTF ???? I have 2 diesel vehicles. How can there be so much difference in price ?? I'm on the Sunshine Coast in Qld.....

There is an extra tax of about 17c/l on diesel in Australia (wasn't removed when the GST was introduced).

Whats going to happen to diesel when this carbon trading BS comes into action. Are they going to increase the price or do what they will do with petrol?

DoreSlamR · 22-07-2008, 09:06 PM

*cough* biodiesel *cough*

scottmeister · 22-07-2008, 09:23 PM

Diesel engines also require more frequent servicing intervals, cost more to initially purchase, and they are just as inefficient idling in traffic...not to mention a turbo diesel can suck down the juice quite quickly when under a good load.

LPG>Petrol>Diesel, for passenger cars, imho.

sgt_doofey · 23-07-2008, 09:52 AM

Quote:

Originally Posted by scottmeister

Diesel engines also require more frequent servicing intervals

So, petrol engines have a servicing interval greater than the 20,000km interval on my 307? I think that was true for the older generation diesels, but the new generation common rail ones are on par, if not better, than the equivalent petrol engine in that regards.

Quote:

they are just as inefficient idling in traffic

Are you sure about that? Got anything to back that up?
I would say that a diesel is a hell of a lot more efficient at idle that a petrol engine considering how little fuel is required for ignition due to the higher compression they use.

Quote:

LPG>Petrol>Diesel, for passenger cars, imho.

I'd say it would be LPG > Diesel > Petrol.
From my records, my EL is costing roughly 8c/km in LPG whereas the 307 is up to about 11c/km due to the hike in diesel costs. I'm sure the 307 would still be cheaper than a 2.0L Petrol engine to run. I don't own a petrol car so I can't put down any real world figures unfortunately.

Quote:

Originally Posted by T_Terror

Id go petrol everytime, every diesel car i hear is rattly, even the BMW X5s and I just personally prefer the power delivery of petrol.

Really? Have you driven a newer generation diesel? The power delivery in the 307 is quite good, IMO. It is a flat acceleration compared to a petrol engine, but it just keeps on accelerating due to the bags or torque (320Nm) available from as little as 1750rpm.
I think the diesel acceleration would take a little getting used to like it did for me, but it is a really good means of acceleration. I can easily overtake on the highways from say 100km/h in 6th gear without having to shift back. The torque just pulls you along and your doing 140km/h before you know it.

Hunter · 23-07-2008, 10:32 AM

Quote:

Originally Posted by sgt_doofey

I'd say it would be LPG > Diesel > Petrol.
From my records, my EL is costing roughly 8c/km in LPG whereas the 307 is up to about 11c/km due to the hike in diesel costs. I'm sure the 307 would still be cheaper than a 2.0L Petrol engine to run. I don't own a petrol car so I can't put down any real world figures unfortunately.

My Mazda 3 (which is 2.0L petrol) is using 11 cents/km in petrol... I dare say it also cost a less to buy than the French oil burner

:

My petrol falcon on the other hand costs 22c/km

T_Terror · 22-07-2008, 09:25 PM

i threw in $20 of diesel at 1.90 today in inner city melb !!!
Unbelievable!

Id go petrol everytime, every diesel car i hear is rattly, even the BMW X5s and I just personally prefer the power delivery of petrol.

With the difference in cost making the differnece in running cost marginal, i would say its worth paying a few extra dollars just to enjoy the driving experience more.

PHATXR8 · 22-07-2008, 09:37 PM

NRMA Open Road magazine this month has an article that states that Diesel vehicles are more expensive to run now than Petrols...

BadMac · 22-07-2008, 09:44 PM

Quote:

Originally Posted by PHATXR8

NRMA Open Road magazine this month has an article that states that Diesel vehicles are more expensive to run now than Petrols...

Actually if you add together my numbers in my previous posts, its probably true that Diesel has lost its advantage (fuel cost plus extra purchase cost = equivalant to petrol).

Laminge · 23-07-2008, 07:09 AM

I wish people who have never owned a diesel car would keep their opinions in their y fronts ffs, some crap has been posted in here just to ensure they have their avatar in this thread, nothing else is of worth

Ive gone from around $120 a week in fuel in the territory to around $75 a week for the same ks in the vw.