At what point does a Diesel become uneconomical? - Renault Forums :: Independent Renault forum

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post #1 of 28 (permalink) Old 10th December 2008 Thread Starter
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At what point does a Diesel become uneconomical?

Flicking through Autotrader looking at various cars and it came to me - with Diesel fuel prices above Petrol now, is there a point where if you do a certain number of low miles that a Diesel's economy is cancelled out byt he extra PPL?

What's making me ask is I've been thinking and I'll probably change cars after Uni (so 2011+) and was looking at the Seat Leon 2.0TDi DSG (Basically a Golf that looks nicer, is a bit rarer and is 3 IGs cheaper?! The Leon TDi Sport is 9, th Golf TDi Sport is 12 ) however at the mo I only do about 3k a year (I know this may change, but for sake of the question, lets say it stays at 3k) and so was wondering is it more economical to go Petrol and get the 2.0FSI (non- Turbo )?

Just one of my little technical Qs
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post #2 of 28 (permalink) Old 10th December 2008
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Your absolutely right,with diesels being more expensive than a comparative petrol engined model and the cost of diesel being more,there is definately a point where buying a diesel is pretty much pointless,and it certaintly is for 3,000 miles a year.

Having said that,I'm sure that if you drove a new 2 litre diesel VW you'd probably fall in love with it.

I'd rather push my Alfa than drive a BMW....
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post #3 of 28 (permalink) Old 10th December 2008
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In all honesty you would need to do your sums on this aspect.
You need to consider the whole picture
Will a diesel car cost me more to buy
Will a diesel car hold its value better
Which car will do the best mpg or cost per mile
What are the tax and insurance implications
What are the likely maintenance costs - diesels tend to be a bit more expensive at service time, etc

The best way is to set up a spreadsheet and calculate the overall cost per mile of running as fuel isn't the only cost of running a car and the fewer miles you do per year the fuel cost in some aspects can be the least of your expenses.
I travel about 2,000 miles per year mostly on short runs and I reckon my annual fuel bill at around 250 per year yet I spend about 350 on tax and insurance plus I reckon my car will depreciate in value by about 400. Without maintenace that works out at 50 pence per mile.
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post #4 of 28 (permalink) Old 10th December 2008
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I think with derv , its down to what you want the car to do, i choose a deisel because of its low down torque and the fact of when we are towing its mpg is alot better than our previous petrol car.
and on a weekly basis i know that when i fill up at the pumps it may cost a little more but i dont fill up as much now as i have better mpg.....
weather in the long term i save money or it cost me more i dont know yet m8?


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Last edited by Tink; 10th December 2008 at 12:36 PM.
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post #5 of 28 (permalink) Old 10th December 2008
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depends if were talking about a Renault dci diesel engine or not !

If we are then its not for obvious reasons...

Turbo failure is whats put me off getting a diesel engined car.
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diesel , point , uneconomical

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