Diesel vs Petrol
Moderators: q292u, Ray, AndyAdmin, Stranger
Diesel vs Petrol
Personally I would not go back to petrol as the torque is treating me very well. Good with over taking and excellent with fuel consumption but here is a little theorem I devised let me know what you think.
Compare megane cc 1.6 and megane cc 1.5dci
Lets asume 12000miles a year
Here is the theory.
12 000 miles uses roughly 214 gallons with a 1.5dci engine (assume 56mpg)
which is roughly 857 litres (say one litre is £1.10) thats roughly £943 a year.
12 000 miles with the most economical petrol engine uses roughly 300 gallons with a 1.6 petrol engine (assume 40mpg) thats roughly 1200 litres (say one litre is £1.05) thats roughly £1260 a year.
Thats £317 less a year.
The diesel is £110 a year on road tax, the petrol is £150 a year
Thats £40 less a year.
The diesel is in insurance group 6 and the petrol is in group 7.
Thats roughly £100 less.
The diesel should be more to service but longer intervals (no 100% sure on that) so lets say it works out to be the same.
The diesel costs £1010 more to buy but is worth 50% after 3 years while the petrol is worth 46%. This means in three years the diesel is worth £9665 and the petrol is £8436.
This means in three years the diesel is worth £1229 more than the petrol which more than covers the cost of buying a diesel.
So in three years the diesel should be 3 x £450 = £1350 better off than the petrol.
There is my research please give me my masters.
Compare megane cc 1.6 and megane cc 1.5dci
Lets asume 12000miles a year
Here is the theory.
12 000 miles uses roughly 214 gallons with a 1.5dci engine (assume 56mpg)
which is roughly 857 litres (say one litre is £1.10) thats roughly £943 a year.
12 000 miles with the most economical petrol engine uses roughly 300 gallons with a 1.6 petrol engine (assume 40mpg) thats roughly 1200 litres (say one litre is £1.05) thats roughly £1260 a year.
Thats £317 less a year.
The diesel is £110 a year on road tax, the petrol is £150 a year
Thats £40 less a year.
The diesel is in insurance group 6 and the petrol is in group 7.
Thats roughly £100 less.
The diesel should be more to service but longer intervals (no 100% sure on that) so lets say it works out to be the same.
The diesel costs £1010 more to buy but is worth 50% after 3 years while the petrol is worth 46%. This means in three years the diesel is worth £9665 and the petrol is £8436.
This means in three years the diesel is worth £1229 more than the petrol which more than covers the cost of buying a diesel.
So in three years the diesel should be 3 x £450 = £1350 better off than the petrol.
There is my research please give me my masters.
- Stranger
- Site Admin
- Posts: 4224
- Joined: Sat Mar 26, 2005 7:57 pm
- Currently Drives:: BMW X1
- Location: Lancashire
Re: Diesel vs Petrol
Do you work for or provide information to the government Wanda?
The reason that I ask is that if you do I think that you're heading the right way for not only a masters but aso to be knighted, if you don't you are merely using common sense and won't even be given a second glance
The reason that I ask is that if you do I think that you're heading the right way for not only a masters but aso to be knighted, if you don't you are merely using common sense and won't even be given a second glance
STOP DEVELOPMENT ON GREEN FIELD SITES! http://www.cpre.org.uk/
Re: Diesel vs Petrol
Why, thank you my good lad
Next I will prove to you mathematically that pigs can fly.
Next I will prove to you mathematically that pigs can fly.
- Gav
- Advanced Driver
- Posts: 293
- Joined: Fri Apr 13, 2007 11:55 am
- Currently Drives:: Sport Tourer, 1.5 dCi 106
- Location: Chilworth, Surrey
Re: Diesel vs Petrol
I doubt that 1 insurance group is £100 a year difference. It might be if you're young and have no NCB, but to those of us with some experience, it's definitely under £50, probably closer to £25.
Service intervals are the same or shorter for Diesels too, so servicing does cost more. If you only cover 12k a year, then both cars should be serviced annually.
For your 12000 miles a year, the Diesel is cheaper overall, and the gap only gets wider the more miles you do. For my 1.5dCi it's cost me on average 8.215p per mile in Diesel over 13k miles in ~10 months. The Petrol 307 I used to run was 10p a mile (over 22k in ~19 months) when fuel was cheaper (averaging 90p/l), thus costing 11.7p a mile with todays fuel price of 104.9p/l. That's not a a 3.5p/mile saving as diesel has gone up in price, so more like 2.9p/mile. 12000 * 2.9 = £348 a year less for me - but then I get better mpg than suggested - which is more than a normal service. So even without depreciation, insurance & tax, diesel is cheaper.
Service intervals are the same or shorter for Diesels too, so servicing does cost more. If you only cover 12k a year, then both cars should be serviced annually.
For your 12000 miles a year, the Diesel is cheaper overall, and the gap only gets wider the more miles you do. For my 1.5dCi it's cost me on average 8.215p per mile in Diesel over 13k miles in ~10 months. The Petrol 307 I used to run was 10p a mile (over 22k in ~19 months) when fuel was cheaper (averaging 90p/l), thus costing 11.7p a mile with todays fuel price of 104.9p/l. That's not a a 3.5p/mile saving as diesel has gone up in price, so more like 2.9p/mile. 12000 * 2.9 = £348 a year less for me - but then I get better mpg than suggested - which is more than a normal service. So even without depreciation, insurance & tax, diesel is cheaper.
06 Extreme Blue 1.5dCi 106 Dynamique Sport Tourer with panoramic sunroof and Dension Gateway
Re: Diesel vs Petrol
but then really in three years time it will be worth 10p...fact.just cause its a renault.
Re: Diesel vs Petrol
No snowy, the manual will be worth 10p
-
- Posts: 11
- Joined: Sat Aug 02, 2008 1:26 pm
Re: Diesel vs Petrol
Hi, i'm new to the site, and do not own a Megane (YET!).
I am thinking of buying a 1.9 DCI or the 1.6 VVT Petrol.
I read your comparison with the 1.6 and the 1.5DCI, but would you recommend the 1.9DCI over the 1.6 petrol.
Fuel prices here are going up every month and Diesel is quite high now, looking at the stats the 1.6 petrol is only 10 miles to the gallon less then the 1.9, and there doesn't seems to be much between them in performance.
Has anyone drove both, still in two minds which one to go for , any suggestions are welcome.
I am thinking of buying a 1.9 DCI or the 1.6 VVT Petrol.
I read your comparison with the 1.6 and the 1.5DCI, but would you recommend the 1.9DCI over the 1.6 petrol.
Fuel prices here are going up every month and Diesel is quite high now, looking at the stats the 1.6 petrol is only 10 miles to the gallon less then the 1.9, and there doesn't seems to be much between them in performance.
Has anyone drove both, still in two minds which one to go for , any suggestions are welcome.
- 72uoba
- Just Passed
- Posts: 143
- Joined: Sat Feb 11, 2006 10:16 pm
- Currently Drives:: Renault Laguna 2007 GT 175
- Location: Inverness
- Contact:
Re: Diesel vs Petrol
What about the initial purchase price of the diesel which can be up to £1000 more.
A mag recently suggested that you now need to do an annual mileage of 20,000 for a diesel to pay for itself.
Maybe a 1.5 dci versus 1.4 petrol would be a fairer comparision?
A mag recently suggested that you now need to do an annual mileage of 20,000 for a diesel to pay for itself.
Maybe a 1.5 dci versus 1.4 petrol would be a fairer comparision?
-
- Advanced Driver
- Posts: 536
- Joined: Fri May 09, 2008 10:17 am
- Currently Drives:: 04 Megane 1.6e 16V VVT
Re: Diesel vs Petrol
several garages are starting to discourage people from buying a diesel if you are doing less than 20k a year now aswell
Renault Megané Dynamique 1.6e 16v VVT 2004
- Gav
- Advanced Driver
- Posts: 293
- Joined: Fri Apr 13, 2007 11:55 am
- Currently Drives:: Sport Tourer, 1.5 dCi 106
- Location: Chilworth, Surrey
Re: Diesel vs Petrol
pjsmoothie wrote:Hi, i'm new to the site, and do not own a Megane (YET!).
I am thinking of buying a 1.9 DCI or the 1.6 VVT Petrol.
I read your comparison with the 1.6 and the 1.5DCI, but would you recommend the 1.9DCI over the 1.6 petrol.
Fuel prices here are going up every month and Diesel is quite high now, looking at the stats the 1.6 petrol is only 10 miles to the gallon less then the 1.9, and there doesn't seems to be much between them in performance.
Has anyone drove both, still in two minds which one to go for , any suggestions are welcome.
In the stats the 1.9dCi is quite a bit quicker than the 1.6 petrol, as it has an extra 20bhp and almost double the torque.
The 1.4 petrol is no better on fuel than the 1.6 on the combined cycle (which I know is not what everyone achieves, but I get close, so I use that figure). Therefore matching the 1.6 petrol against the diesels makes sense:
1.5dCi 106 is down 5bhp, but up 88Nm in torque compared to the 1.6 petrol. It's 0.2s slower to 62mph and can only do 117mph rather than 119! So in the real world is as quick.
The difference in economy is significant, and should work out at today's prices at 10p/mile for diesel and 13p for petrol. Purchase price difference close to £800 means around 26,000 miles before the diesel is cheaper (excluding servicing, maintainance etc).
Therefore if you do only 5,000 miles a year, get the 1.6 petrol! The higher the mileage you'll put on the car, the more a diesel starts to make sense. If you need to save money when filling up, (a £70 spend isn't so bad when you've done over 700 miles), the 1.5dCi 106 is hard to beat. If you need performance with reasonable economy, 1.9dCi is good (and they're supposedly most efficient cruising on the motorway).
06 Extreme Blue 1.5dCi 106 Dynamique Sport Tourer with panoramic sunroof and Dension Gateway
- gavnaysh
- Just Passed
- Posts: 145
- Joined: Tue Aug 19, 2008 9:47 pm
- Currently Drives:: megane dci 120 in blue 3 door
- Location: derbyshire
Re: Diesel vs Petrol
i dont do major miles but the 1.9 dci is averagin 40mpg just over and the torque makes it so easy to drive and overtake i wouldn't have a petrol again apart from a big petrol lol then the economy wouldn't be as good in my bmw i would use 30-35£ where i will use 20£ in meggy so its cheaper still on short journeys (i travel 11 miles each way to work in about 15-20 mins every mornin) and its 210 pound cheaper insurance!!
its gone but not forgotten lol, but the A3 has more than filled the gap on the drive woo hoo i love it
Re: Diesel vs Petrol
I'm saving 150 a month with the meg. i dont enjoy driving it, and it isnt a good car but you cant argue with 50+ mpg
DCi 120 for sale, 52,000 miles, £3250 ono
- MeganeChick
- Pass Plus
- Posts: 173
- Joined: Fri Mar 30, 2007 10:59 am
- Currently Drives:: Black Gold '06 RenaultSport Megane 225: lux, cup pack, full tints, custom exhaust, blanking plate, custom air intake feed, RSTuning remap (255bhp), ITG panel filter, Samco silicon air intake pipe, Forge Intercooler, renaultsport alloy wheel decals, xenons, xenon white interior and exterior lighting upgrade, FLI trap 12 active subwoofer (1000 watts) :D
- Location: Hinckley, Leicestershire
- Contact:
Re: Diesel vs Petrol
petrol all the way!
i had looked into a diesel for economy - looked at the renaultsport dci 175 (with cup pack ) knowing i could get it mapped to 200bhp and would still be a great beast to drive - however, after jumping into the 225 - the petrol stole my heart!
yes the fuel use is noticeably different - but worth every penny!
i had looked into a diesel for economy - looked at the renaultsport dci 175 (with cup pack ) knowing i could get it mapped to 200bhp and would still be a great beast to drive - however, after jumping into the 225 - the petrol stole my heart!
yes the fuel use is noticeably different - but worth every penny!
'06 RenaultSport Megane 225: lux, cup pack, full tints, custom exhaust, xenons, xenon white interior and exterior lighting upgrade, tuned, FLI trap 12 active subwoofer (1000 watts)
Re: Diesel vs Petrol
MeganeChick wrote:petrol all the way!
i had looked into a diesel for economy - looked at the renaultsport dci 175 (with cup pack ) knowing i could get it mapped to 200bhp and would still be a great beast to drive - however, after jumping into the 225 - the petrol stole my heart!
yes the fuel use is noticeably different - but worth every penny!
What about those times when you need the extra torque like when that idiot is behind you on the motorway and tries to force you out of their way..... what if its a 225 trying to bully a 175 on the motorway?
- MeganeChick
- Pass Plus
- Posts: 173
- Joined: Fri Mar 30, 2007 10:59 am
- Currently Drives:: Black Gold '06 RenaultSport Megane 225: lux, cup pack, full tints, custom exhaust, blanking plate, custom air intake feed, RSTuning remap (255bhp), ITG panel filter, Samco silicon air intake pipe, Forge Intercooler, renaultsport alloy wheel decals, xenons, xenon white interior and exterior lighting upgrade, FLI trap 12 active subwoofer (1000 watts) :D
- Location: Hinckley, Leicestershire
- Contact:
Re: Diesel vs Petrol
as if a 225 would try and bully a 175 on the motorway lol! where is the renaultsport love?? lol
yeah more torque from the 175 - not yet had that experience so not sure what would happen? lol
yeah more torque from the 175 - not yet had that experience so not sure what would happen? lol
'06 RenaultSport Megane 225: lux, cup pack, full tints, custom exhaust, xenons, xenon white interior and exterior lighting upgrade, tuned, FLI trap 12 active subwoofer (1000 watts)
Who is online
Users browsing this forum: No registered users and 23 guests