E60 M5 LPG anyone?
Discussion
http://www.ebay.co.uk/itm/2005-05-BMW-M5-SILVERSTO...
Hmmmm! Am I right in thinking this wont be good for the engine long term. Piston ring wear, detonation? Oh I don't know it just seems WRONG!!!!
Hmmmm! Am I right in thinking this wont be good for the engine long term. Piston ring wear, detonation? Oh I don't know it just seems WRONG!!!!
Edited by Somesayhis on Friday 2nd March 09:15
what? If converted good, LPGed engine can last even longer..because LPG burns cleaner you can even prolong oil changes etc. It tends to run leaner on higher rpms but that could be sorted out with ECU mapping or it automatically switches to petrol at like ~5K rpm.
It very much makes sense with this car, especially because it has bigger tank than petrol one and you can even put bigger if you want to increase autonomy...
If done professionally this is a very good buy.
It very much makes sense with this car, especially because it has bigger tank than petrol one and you can even put bigger if you want to increase autonomy...
If done professionally this is a very good buy.
playalistic said:
AreOut said:
It very much makes sense with this car.
It makes sense to LPG a high-revving V10? Surely sense would dictate you didn't buy this car in the first place?If you cannot afford the petrol in the first place, how could you expect to pay for the rest of the ownership experience? Last time i checked there was no LPG price equivalent for brakes, clutches or other repairs.
If in doubt, dont buy.
Hi,
Whilst I understand the sentiments of fuel affordability concerns with a large engined car, the question I'd like to ask is;
At what price point for a litre of petrol will there be substantially more demand for LPG conversions of such cars like M5's, AMGs, Rolls Royces, USA cars etc etc here in the UK?
Or, when will future big engined fast cars be produced in limited batches of right hand drive only for an ever dwindling potential marketplace?
I know the above is a little 'wishy washy' as the latest variants will be Turbocharged and currently are 4.4 litre displacement. Fuel efficiency has dramatically increased with the scientists and engineers coming up with more efficient designs etc. However, we all know that theoretical MPG and range figures are rarely attainable in the real world.
2015/2016 £1.75-£1.85 per litre? perhaps nudging £2 per litre?...
cheers, Dennis!
Whilst I understand the sentiments of fuel affordability concerns with a large engined car, the question I'd like to ask is;
At what price point for a litre of petrol will there be substantially more demand for LPG conversions of such cars like M5's, AMGs, Rolls Royces, USA cars etc etc here in the UK?
Or, when will future big engined fast cars be produced in limited batches of right hand drive only for an ever dwindling potential marketplace?
I know the above is a little 'wishy washy' as the latest variants will be Turbocharged and currently are 4.4 litre displacement. Fuel efficiency has dramatically increased with the scientists and engineers coming up with more efficient designs etc. However, we all know that theoretical MPG and range figures are rarely attainable in the real world.
2015/2016 £1.75-£1.85 per litre? perhaps nudging £2 per litre?...
cheers, Dennis!
Why all the outrage ?
What is wrong with wanting that sublime engine with a little lower fuel cost ? Or even longer range when both fuels are combined ?
If you don't like it, don't buy it. But if it has been professionally converted, it shouldn't even be noticeably different until the top of the rev range.
If a Porsche Cayenne Turbo S can be coverted, with near similar HP, why not this? There are RS6s which have been converted and run well.
What is wrong with wanting that sublime engine with a little lower fuel cost ? Or even longer range when both fuels are combined ?
If you don't like it, don't buy it. But if it has been professionally converted, it shouldn't even be noticeably different until the top of the rev range.
If a Porsche Cayenne Turbo S can be coverted, with near similar HP, why not this? There are RS6s which have been converted and run well.
playalistic said:
AreOut said:
It very much makes sense with this car.
It makes sense to LPG a high-revving V10? Surely sense would dictate you didn't buy this car in the first place?If you dont need the boot space why not?
It doesnt sound any different, perhaps it has slightly less go, I am honestly not sure but it's a hell of a lot cheaper to run.
Even cheaper if you're paying 50p a litre for gas.
ecain63 said:
playalistic said:
AreOut said:
It very much makes sense with this car.
It makes sense to LPG a high-revving V10? Surely sense would dictate you didn't buy this car in the first place?If you cannot afford the petrol in the first place, how could you expect to pay for the rest of the ownership experience? Last time i checked there was no LPG price equivalent for brakes, clutches or other repairs.
If in doubt, dont buy.
AyBee said:
ecain63 said:
playalistic said:
AreOut said:
It very much makes sense with this car.
It makes sense to LPG a high-revving V10? Surely sense would dictate you didn't buy this car in the first place?If you cannot afford the petrol in the first place, how could you expect to pay for the rest of the ownership experience? Last time i checked there was no LPG price equivalent for brakes, clutches or other repairs.
If in doubt, dont buy.
I run an M5 on LPG. I pay for parts the same way as everyone else ( cash or card).
I can afford the petrol...I ran my previous M5 for 18 months on petrol at 500 plus miles a week. I choose to run this one on LPG ( which cost me £1500 to install) as I did the sums and decided that if i kept the car for long enough it would pay me back and then some.
And as an aside re brakes/clutches etc. I think it is generally agreed that AP racing 6 pots are not OEM but are better, there are a multitude of non OEM clutches which are generally acknowledged as superior to OEM and so on and so on.
ArmaghMan said:
Try running an M5 at 500 plus miles a week and see if LPG suddenly looks much much more appealing.
If you dont need the boot space why not?
It doesnt sound any different, perhaps it has slightly less go, I am honestly not sure but it's a hell of a lot cheaper to run.
Even cheaper if you're paying 50p a litre for gas.
Out of interest, how much cheaper per full tank is it to run now?If you dont need the boot space why not?
It doesnt sound any different, perhaps it has slightly less go, I am honestly not sure but it's a hell of a lot cheaper to run.
Even cheaper if you're paying 50p a litre for gas.
If you take into account eating through brakes, tyres and other consumables as you're doing more miles (plus the £1500 for LPG conversion) it probably evens itself out over the lifetime of the car surely?
ecain63 said:
If you can afford the petrol then that's cool. My point was that people would buy it because they couldn't afford a petrol sucking model, which is daft.
Wrong IMO, people would buy it because they would think, oh, I can drive an M5 that will do the equivalent of 30mpg rather than 15mpg (working on the assumption of LPG being half the cost of petrol) so I can drive it more and it won't hit me where it hurts. You'd have to be stupid to buy a car that you couldn't afford to maintain whether it was LPG or petrol so that doesn't come into it but anything that makes a great car, cheaper to run would be welcomed by me.playalistic said:
Out of interest, how much cheaper per full tank is it to run now?
If you take into account eating through brakes, tyres and other consumables as you're doing more miles (plus the £1500 for LPG conversion) it probably evens itself out over the lifetime of the car surely?
How would it even out ? After about 12-15k miles, the conversion would have paid for itself. Fuel from now costs less.If you take into account eating through brakes, tyres and other consumables as you're doing more miles (plus the £1500 for LPG conversion) it probably evens itself out over the lifetime of the car surely?
All the other expenses were the same as before.
So every mile costs less than it did before.
pretty sure LPG is a better fuel than petrol... it runs cleaner, is cheaper and in fact can be mapped for more power due to the octaine rating being higher.
the downside is that you actually do LESS mpg of gas (up to 5%???)... but then its massively cheaper so it costs less to run.
Pretty sure it costs more than 1500 to do the conversion, bet its not simple on the E60 as well?
the downside is that you actually do LESS mpg of gas (up to 5%???)... but then its massively cheaper so it costs less to run.
Pretty sure it costs more than 1500 to do the conversion, bet its not simple on the E60 as well?
playalistic said:
ArmaghMan said:
Try running an M5 at 500 plus miles a week and see if LPG suddenly looks much much more appealing.
If you dont need the boot space why not?
It doesnt sound any different, perhaps it has slightly less go, I am honestly not sure but it's a hell of a lot cheaper to run.
Even cheaper if you're paying 50p a litre for gas.
Out of interest, how much cheaper per full tank is it to run now?If you dont need the boot space why not?
It doesnt sound any different, perhaps it has slightly less go, I am honestly not sure but it's a hell of a lot cheaper to run.
Even cheaper if you're paying 50p a litre for gas.
If you take into account eating through brakes, tyres and other consumables as you're doing more miles (plus the £1500 for LPG conversion) it probably evens itself out over the lifetime of the car surely?
Petrol is over £1.40 a litre
If we do some VERY ROUGH MATHS it works out as follows
5 litres = 1 gallon
car does 22mpg
Therefore cost of 1 gallon LPG = £3.80
cost of one gallon petrol =£7.00
therefore one mile costs £3.80/22 = 17p approx on lpg
£7.00/22 = 32p approx on petrol
saving is therefore 15p per mile
so at £1500 it takes me 10,000 miles to get my money back
at approx 2,000 miles a month It takes me 5 months to get my money back and start saving.
playalistic said:
It makes sense to LPG a high-revving V10? Surely sense would dictate you didn't buy this car in the first place?
so what if it's high-revving? The fuel doesn't exactly "know" the revs of the engine, and you can map it to suit LPG fuel without problem. Yes it takes some time and a bit of an engineering but that's not the problem for any experienced ECU tuner.ecain63 said:
This!
If you cannot afford the petrol in the first place, how could you expect to pay for the rest of the ownership experience? Last time i checked there was no LPG price equivalent for brakes, clutches or other repairs.
If in doubt, dont buy.
so what? Go ask that the people that buy 50+K diesels...for even less fuel consumption benefitsIf you cannot afford the petrol in the first place, how could you expect to pay for the rest of the ownership experience? Last time i checked there was no LPG price equivalent for brakes, clutches or other repairs.
If in doubt, dont buy.
ecain63 said:
If you can afford the petrol then that's cool. My point was that people would buy it because they couldn't afford a petrol sucking model, which is daft.
and how you know why would people buy it? I plan to supercharge and LPG my M5 E39, if I can drive cheaper(and even snatch more power by using higher octane fuel) then why not?!Gassing Station | M Power | Top of Page | What's New | My Stuff