The FIAT Forum
Shop4Parts - UK's largest online superstore for FIAT and Alfa Romeo parts

Go Back   The FIAT Forum > FIAT Cars > 500


Reply
 
Thread Tools Search this Thread
Old 04-04-2008   #16
 
dt900's Avatar
 
Join Date: Jan 2008
Location: County Antrim
Posts: 82
Thanks: 0
Trader Rating: (0)
United Kingdom 
Re: very economical diesel

I got my last fill of diesel for 110.9 I think which saved about 7p a litre. I bought a diesel for the torque and economy. As for trying to better my economy figure I think this would be possible on a really long run staying around 60mph. I read recently that you use 10% more fuel at 70mph than at 60mph.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

dt900 is offline  
Reply With Quote
Old 05-04-2008   #17
Bad Cop.
 
The Beast's Avatar
 
Join Date: Jun 2006
Location: Hades by the River Styx
Posts: 4,608
Thanks: 95
Trader Rating: (0)
The Beast has donated! United Kingdom 
Re: very economical diesel

Originally Posted by Mark Elvin View Post
OK, so being a sad anorak I have just sat down & done an excel spreadsheet using the official FIAT economy figures on my 1.2 doing55.4mpg & a a deisel doing 67.3mpg for the 275 miles I drive every week.

If I have bought a deisel I would save myself......£2.26 a week, or about £103.96 a year.

So over the course of 3 years ownership I'd save £311.88.

I guess for the mileage I cover the extra £1400 for the deisel is no where near worth it as come resale time there is no way the deisel will be worth £1088.12 (cost difference new minus saving in fuel cost over 3 years) more than the petrol model.

Thinking longer term. My post on breaking even between the two.





Originally Posted by The Beast View Post
Fuel economy. Using the cheapest fuel stations around my area.
petrol £1.03 Diesel £1.10
Price difference between cars £1400
Fuel economy on the combined stat. 1.2 55.4MPG 1.3 67.3MPG

Now 4.55 litres in a gallon. so with a 7P per litre difference in the price of the more economical fuel. We need to save £1400 pounds in fuel for the premium of the diesel to break even.


Excuse my maths here.

10,000 miles will use 821.7 litres of fuel in the petrol costing £846.35
10,000 miles will use 676.13 litres of fuel in the diesel costing £743.74
so for every 10,000 miles you claw back £102.61

so the £1400 pounds difference is divided up by the 10,000 mile difference to give the amount of 10,000 chunks you would need to complete before you break even. which is 13.64 so this times 10,000 will give you the mileage you need to do to break even.


136,438 miles then after that diesel is cheaper.


Feel free to correct my maths I know I'm rubbish at it.
The Beast is offline  
Reply With Quote
Old 05-04-2008   #18
 
Jake_in_notts's Avatar
 
Join Date: Jan 2008
Location: Nottingham
Posts: 270
Thanks: 10
Trader Rating: (0)
United Kingdom 
Re: very economical diesel

Well im convinced . There is no real finantial reason to buy a diesel based on price differentials of initial cost and running costs. The resale differential is unkown atm but it is unlikely that we get that much money back so all thats left is the difference in the engine character. I like torque, but is that worth £1400? I guess thats a personal thing ! I have a diesel on order so I made my choice
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

Jake_in_notts is online now  
Reply With Quote
Old 05-04-2008   #19
 
Join Date: Jan 2008
Posts: 119
Thanks: 2
Trader Rating: (0)
Re: very economical diesel

Originally Posted by Jake_in_notts View Post
Mark the way I look at it is this. Buying a 1.2 never even crossed my mind as there engine is just too weak to go up the hills in my area. I therefore compare it to the 1.4 its the same price and it has more mpg, better torque and less car tax.
Therefore if dont compare it to a 1.2 and you made the correct and only descision.
These arguments can go on forever, depending on your choice! The 1.2 won't go up hills at 2000rpm but how on earth do you think the Italians managed in the original 500, it isn't a flat country you know. Down a couple of gears and a bucketful of revs and up she goes. For a someone who likes a revvy engine the 1.3 doesn't come near touching the 1.4's performance.

It comes far more down to driving style preference than a "correct" decision financially.

Cheers
Baldrick
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

baldrick500 is offline  
Reply With Quote
Old 05-04-2008   #20
 
Join Date: Oct 2007
Posts: 90
Thanks: 2
Trader Rating: (0)
Re: very economical diesel

If we stay at sensible speeds in the 1.3MJ it always hits above 70mpg, but even gunning it everywhere we only drop down to mid 60's.

Not many cars will go 0-60 in under 9s, hit over a 115mph and still return those king of figures!

We have done just shy of 10,000 miles testing and hooning about in it and still I am not bored of it. I went from the Midlands to Chichester, then Gosport then Salisbury before back to the midlands today, yesterday I went to Ripon then Wrexham before goingback to the Midlands and its cost me about £60 in BP Ultimate :-)
__________________
Tuning - Styling - Lifestyle
500 Logo Tax Disc Holders £20 inc P&P
00 44 (0)1926 611996
N500SHP is offline  
Reply With Quote
Old 05-04-2008   #21
Cinq Sp
 
Join Date: Mar 2008
Location: Essex
Posts: 94
Thanks: 4
Trader Rating: (0)
Vic20 has donated! United Kingdom 
Re: very economical diesel

I drive a Diesel Audi A3 2.0 TDI which I love. Regularly returns 60MPG, 0-60 in 8 seconds and top is around 130. I do journeys of around 37 miles to work and an average of 19,000 miles per year so it is perfect.

When looking for a new car for the Wife, it's a no brainer, she does lots of short trips around town as a community health worker, lots of stop starts from cold, low mileage. It's got to be the 1.2 PETROL 500 (at least that's the first option choice made )

Horses for Courses

Vic
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

Vic20 is offline  
Reply With Quote
Old 07-04-2008   #22
 
Join Date: Jan 2008
Posts: 396
Thanks: 10
Trader Rating: (0)
Re: very economical diesel

Temperature of engine does not make a difference to diesels, they are equally economical from cold to full running temperature, whereas the petrols will always guzzle until they are warm, so for short trips around town you are better off with the diesel.

(BTW, this is not meant to be a diesel is generally better than petrol post)

Good to hear people are getting good returns on their diesels at last. Mines due to arrive any day now, so I'm just hoping there won't be any hg, economy or trim faults...having nightmares about it actually!
__________________
It's HERE!!!!!!1.3 Lounge, Red, 16" Multis, White sport stripe, Side rubbing with badge, Chrome mirrors, Dark tinted windows, Climate control, Ivory gearknob, Fairy lights, ESP, Auto dimming mirror, Black check cloth with Ivory ambiance, Parktronic.
Baerius is offline  
Reply With Quote
Old 07-04-2008   #23
 
Join Date: Mar 2008
Posts: 203
Thanks: 0
Trader Rating: (0)
Re: very economical diesel

Its all about which you prefer to drive.

Ive got a small car with a TDi engine and its great, by far cheaper to run than my other car (the same car but a smaller engined petrol).

IMO the 1.3 diesel is against the 1.4 engine, as its the same price, therefore cannot reallt compare to the 1.2. A 1.3 will remap too so will give near 1.4 performance, if not a little more.

Id get the diesel, as thats what i prefer to drive.

And yes, i do have a petrol stilo, but i still maintain, a diesel is a better drive - generally.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

stilo16v is offline  
Reply With Quote
Old 07-04-2008   #24
Cinq Sp
 
Join Date: Mar 2008
Location: Essex
Posts: 94
Thanks: 4
Trader Rating: (0)
Vic20 has donated! United Kingdom 
Re: very economical diesel

Originally Posted by Baerius View Post
Temperature of engine does not make a difference to diesels, they are equally economical from cold to full running temperature, whereas the petrols will always guzzle until they are warm, so for short trips around town you are better off with the diesel.
Untrue, Deisels take much longer to reach best economy and working temperature than petrols do due to their nature of operation which is why Deisels are a better buy for higher mileage use.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

Vic20 is offline  
Reply With Quote
Old 07-04-2008   #25
 
Join Date: Mar 2008
Location: Manchester
Posts: 52
Thanks: 1
Trader Rating: (0)
kw1984 has donated! United Kingdom 
Re: very economical diesel

Originally Posted by Vic20 View Post
Untrue, Deisels take much longer to reach best economy and working temperature than petrols do due to their nature of operation which is why Deisels are a better buy for higher mileage use.
I agree. Diesels rely on high compression and nice warm cylinders to get the most out of the fuel. Thats why old Diesels tend to be smokey when cold as the fuel isn't fully burning and appears as smoke.
__________________
1.2 Fiat 500 lounge BLACK
Black leather/Black Ambiance,
Auto Climate Control, Side Rubbing strips 500 logo, Chrome Mirrors
Arrived 1st April '08
kw1984 is offline  
Reply With Quote
Old 07-04-2008   #26
 
Join Date: Nov 2006
Posts: 507
Thanks: 3
Trader Rating: (0)
Re: very economical diesel

Originally Posted by Baerius View Post
Temperature of engine does not make a difference to diesels, they are equally economical from cold to full running temperature, whereas the petrols will always guzzle until they are warm, so for short trips around town you are better off with the diesel.
Exactly !
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

oilrag is offline  
Reply With Quote
Old 07-04-2008   #27
 
Join Date: Mar 2008
Posts: 144
Thanks: 7
Trader Rating: (0)
Re: very economical diesel

Sorry, but your'e both wrong. The diesel is more efficient which is why it takes so long to deliver heat to the cabin in cold weather. Yes it does use slightly more fuel when cold but not to the same extent as petrol. The high mileage equation is only used for recouping initial purchase costs, most of which will be recouped on trade in anyway as diesels are worth more. Simple as that.

On the other hand the particulate filter will be self cleaning more often and will use more fuel in doing so. The efficiency will still be better. Old diesels smoke more due to the innaccuracy of their injection systems, which has largely been eradicated by the advances in sequential multi stage injection... hence the multijet name.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs


Last edited by dougl65; 07-04-2008 at 22:41.
dougl65 is offline  
Reply With Quote
Old 07-04-2008   #28
 
Join Date: Jan 2008
Posts: 119
Thanks: 2
Trader Rating: (0)
Re: very economical diesel

[quote=dougl65;1483700]The high mileage equation is only used for recouping initial purchase costs, most of which will be recouped on trade in anyway as diesels are worth more. Simple as that.[quote]The big change with modern diesels is that people would only buy diesels if it was going to make a significant saving to runing costs. Diesels were slower and noisier than their petrol equivalents. The choice is less clear cut now as a modern turbo diesel can offer similar performance to a similar size normally aspirated petrol albeit in a very different way.

The high mileage equation still holds true in which case financially diesel is the best choice. At lower mileages it is so marginal and speculative (based on estimated residuals of new models) that preference is the key. Low down torque or revvy power.

With some models (like say a Zafira) the diesel offerings are weak performance wise compared to the petrols, so the diesel teds to be choice for hign mileage users for financial reasons, whereas the stronger performing petrols are the engine of choice in the range.

With the Fiat 500 no engine seems particularly weak each having their own characteristics and performing to expectations for capacity.

So go with your gut feel, the calculator won't really help!

Cheers
Baldrick
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

baldrick500 is offline  
Reply With Quote
Old 08-04-2008   #29
 
Join Date: Mar 2008
Posts: 203
Thanks: 0
Trader Rating: (0)
Re: very economical diesel

Originally Posted by Vic20 View Post
Untrue, Deisels take much longer to reach best economy and working temperature than petrols do due to their nature of operation which is why Deisels are a better buy for higher mileage use.
I agree, a petrol makes a better town car generally.

I have two Arosas, one is a 1.0S and the other a 1.4TDiS. The 1.0 warms up so much faster and is lighter so better for town use. Especially the warming of the engine, in the winter this is really welcome.

The TDi takes forever to warm through and uses a load of fuel in the winter. Even on longer runs it does worse in the winter months, but loves the summer months - MPG wise.

Although saying that i still get better MPG from the diesel around town.

Really, imo, if you do a lot of miles and/or prefer the torque of a diesel then id get the diesel. Otherwise the 1.2 would probably be fine.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

stilo16v is offline  
Reply With Quote
Old 10-04-2008   #30
 
Join Date: Feb 2006
Posts: 766
Thanks: 23
Trader Rating: (0)
United Kingdom 
Re: very economical diesel

Just hit 58.7 mpg on my 1.2 - very impressed indeed That's a fair bit over Fiat's official combined figure!
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

Suasexed is offline  
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) 02 Diesel Punto -Diesel Leak Tipowski Punto 0 05-02-2008 01:47
need a diesel. Aidan Lets Talk FIAT 9 29-09-2007 04:16
Diesel the beasto Leisure Lounge 0 21-11-2006 00:33
The economical mouse and rodent restrainer dave Leisure Lounge 14 02-11-2004 01:08
how economical is your tempra? fady-eg Tempra 6 17-09-2004 09:52


All times are GMT +1. The time now is 13:15.

Copyright ©2002 - 2009 FIAT Forum
Proudly hosted by iNETFX Message Boards and Forums Directory