cancel
Showing results for 
Search instead for 
Did you mean: 

Petrol or Diesel ?

Community Veteran
Posts: 7,906
Thanks: 588
Fixes: 8
Registered: 02-08-2007

Petrol or Diesel ?

Most of the cars I have owned have been Petrol models except for 2 diesel models.
All of these cars were at least 5 years old as I Never had enough money for a new car (Not something that stops people these days)
Both Diesel cars returned excellent mileage, the first was a VW and the second was a Ford, unfortunately the Ford was unreliable so I returned to a petrol model.
The question is this, is it cheaper to run a second hand Diesel Car than a Petrol Car ?
There are loads of charts on the internet comparing Petrol to Diesel costs but I would be interested to hear of anyone with personal experience of running both types of car.
29 REPLIES
Community Veteran
Posts: 38,241
Thanks: 933
Fixes: 54
Registered: 15-06-2007

Re: Petrol or Diesel ?

While I don't have any experience the main factor would appear to be annual mileage versus service costs and as such you would need to look at the service charges associated with the two cars you are considering
This assumes that depreciation and capital costs are similar but that depends on how much you paid in the first place
The two links on this page could be a bit useful http://www.theaa.com/motoring_advice/running_costs/
PowerLee
Rising Star
Posts: 543
Thanks: 12
Registered: 12-03-2013

Re: Petrol or Diesel ?

The thing to watch out for with modern diesel car's is the DPF ( diesel particulate filter ) which was compulsory fitment from 2011 BUT PSA Peugeot / Citroen started fitting them to certain engine's back in 2001.
Diesel's fitted with DFP's also need to use low sap's engine oil which isn't cheap.
The PSA Peugeot / Citroen DV6TED4 16 valve diesel engine is best avoided as it is known to consume turbo charger's & in worse cases for the engine to self destruct, this engine is also found in certain Ford's, Mazda's, Volvo's, Suzuki & BMW Mini.
The other thing with a lot of modern diesel's is the dual mass flywheel, when these fail they can cost a fortune to replace along with the clutch.
Depending on what car you are looking at & what sort of mileage you are doing, it can be better to stick with petrol then go diesel.
Unless it's brand new OR you have a full service history. its been run on the correct oil & the owner has looked after it correctly, a 2nd hand diesel can be a ticking wallet emptying time bomb.
Community Veteran
Posts: 3,380
Thanks: 2
Registered: 18-01-2013

Re: Petrol or Diesel ?

Small town runs - go for a petrol
Longer runs (> 5 miles) go for a diesel.
My petrol is similar in consumption for the school run (12 year old 1.6 Astra) as the wifes new Skoda Yeti. On a run though, the Yeti is far more economical.
*Edit - and this is similar for the last 16-17 diesels we've had over the past 8 years - mostly VWs but we've had a Skoda, Kia and Honda diesel just to break the VW monotony Wink
Community Veteran
Posts: 16,820
Thanks: 1,112
Fixes: 13
Registered: 06-11-2007

Re: Petrol or Diesel ?

Diesel, for me.... as well documented on several motoring threads on here....  best advice I can give is..... look at the service history... if it hasn`t got any... leave it alone... it is important to change the oil on diesel engine cars at regular intervals.... without fail... otherwise things start to go wrong... best age to buy one is at 3 yrs old,... when the first owner is concerned about the mot.... so long as he has kept the service history going, it is up to you to negotiate with the selling garage for a brand new mot... you could also try for 6 months tax  as well... I got that with my Skoda and the garage were only too happy to agree... they replaced the front discs and pads and the rear drums and shoes ... as both were showing signs of wear... ( estimate £250 )  ... go with your gut feeling, too, on the test drive... use  Parkers Guide, to sus out which make and model you would LIKE to buy... based on your requirements... ( seats, doors, est or hatch, mpg, and price etc)... then scout your local papers for just those two or three models... do not just go to a garage and see what they have got left on the forecourt. ... fatal... you WILL be talked into something you did not really want...
Depending on how the next year goes, I will be looking for another second hand diesel car, probably a SKODA from the main agents, as a trade in from someone else...
nadger
Rising Star
Posts: 4,498
Thanks: 46
Registered: 13-04-2007

Re: Petrol or Diesel ?

When I decided to retire at 70 I thought that my usage mileage wouldn't justify buying another diesel so switched to 1.4 petrol engined hatch back.
I'm now on my 2nd Kia Rio and never regretted choice.
That said, a Ford Escort 1.6 diesel estate I owned did 385,000 miles without having any major engine work.
@ shutter - agree about going to a main agent. I bought my original Kia on eBay from 1st owner but decided that private purchases are now too risky with log book loans.
Moderator
Moderator
Posts: 25,755
Thanks: 1,120
Fixes: 47
Registered: 14-04-2007

Re: Petrol or Diesel ?

Quote from: nadger
log book loans.

Crickey that's a new one on me Shocked
Customer and Forum Moderator.
Product of the Tyrell Corporation
Community Veteran
Posts: 16,820
Thanks: 1,112
Fixes: 13
Registered: 06-11-2007

Re: Petrol or Diesel ?

On a "maintainance" point..... diesels do not need to have plugs and points changed/reset like petrol cars.... ( two cost savings there.... 1... parts.... 2... labour.... and of course you have to make sure they are kept at "peak performance" so repetition of costs over a period of years will also add up )....
My skoda is still on the original injectors built into the car in 2001, 
Moderator
Moderator
Posts: 25,755
Thanks: 1,120
Fixes: 47
Registered: 14-04-2007

Re: Petrol or Diesel ?

Quote from: shutter
diesels do not need to have plugs and points changed/reset like petrol cars

But petrol cars are easier to start on the handle Wink
Customer and Forum Moderator.
Product of the Tyrell Corporation
nadger
Rising Star
Posts: 4,498
Thanks: 46
Registered: 13-04-2007

Re: Petrol or Diesel ?

Quote from: Strat
Crickey that's a new one on me Shocked
Consumer programmes, on TV, have reported numerous cases of people buying cars privately and then having them grabbed by finance company because logbook loan didn't show up on HPI check.
If you google logbook loan you'll find loads of links.
@Strat - when did you last have car with handle?

Moderator
Moderator
Posts: 25,755
Thanks: 1,120
Fixes: 47
Registered: 14-04-2007

Re: Petrol or Diesel ?

It was also a while since I had a car with points Wink
I had a look at a couple of Log book Loan companies......absolutely no way.
Customer and Forum Moderator.
Product of the Tyrell Corporation
nadger
Rising Star
Posts: 4,498
Thanks: 46
Registered: 13-04-2007

Re: Petrol or Diesel ?

Quote from: Strat
I had a look at a couple of Log book Loan companies......absolutely no way.

On a par with Payday Loans.
I mentioned them because loans weren't always showing up on checks which, in current financial market, makes private car purchases risky. When I changed cars a couple of years ago it wasn't a chance I was prepared to take when parting with a load of cash.
Long time since I've serviced a petrol engine so forgot about points.
Another reason I didn't go for a diesel ( much as I love them) was that I read that particulate filters need a decent run regularly and these days I only do a couple of long runs a year.
kdoug007
Grafter
Posts: 510
Registered: 17-05-2012

Re: Petrol or Diesel ?

could  i  extend  this ..  how  much  are  u payimg  for the  cheapest  petrol,,,,
  today i paid £129,50
Community Veteran
Posts: 16,820
Thanks: 1,112
Fixes: 13
Registered: 06-11-2007

Re: Petrol or Diesel ?

Nowt !.... Cheesy
Community Veteran
Posts: 6,307
Thanks: 86
Fixes: 3
Registered: 08-01-2008

Re: Petrol or Diesel ?

My little diesel (VW Polo Bluemotion) is a lot less expensive to run than any previous car I've owned.  Bought new but nearly 5 years old now and not likely to be replaced for quite some time unless I suddenly find a lot of money (it's extremely difficult to win the lottery if you don't buy a ticket though) then I might buy a new VW Golf Bluemotion.
Call me 'w23'
At any given moment in the universe many things happen. Coincidence is a matter of how close these events are in space, time and relationship.
Opinions expressed in forum posts are those of the poster, others may have different views.