Best LPG Conversion for a Porsche Cayenne 4.5 V8 ?

[VonSenger]

steve singh said:

Just seems strange to buy a huge 4x4 and then worry about the running cost - if that is the primary motivator there are probably more suitable alternatives which would also cost a lot less to maintain/run outside of fuel?

Personally I'd be a tad self-conscious driving around in a Porsche Cayenne with two filler caps as it would just feel so pretentious - not having a go but just explaining my earlier comment.

Well first of all it has one filler cap. Second, im not that self conscious. And lastly, who worries about fuel? Did i say that? Because one chooses not to pay high fuel prices does that mean they are awake at night worrying about fuel prices? Its an investment choice, i choose to pay less at the pump.

What could i get that offers that level of comfort, reliability and cost?? Diesel 4x4s such as RRs are juicy and id rather have a porsche because im a fan. In regards to hybrid or electric, when it gets more mainstream and ill consider it. Right now i dont think its quite there yet. I Could be wrong though?

[911Thrasher]

LPG is mainstream ?

Anyway, they seems to work, hope your are happy with the conversion. To each its own.

[MrTickle]

VonSenger said:

steve singh said:

Just seems strange to buy a huge 4x4 and then worry about the running cost - if that is the primary motivator there are probably more suitable alternatives which would also cost a lot less to maintain/run outside of fuel?

Personally I'd be a tad self-conscious driving around in a Porsche Cayenne with two filler caps as it would just feel so pretentious - not having a go but just explaining my earlier comment.

Well first of all it has one filler cap. Second, im not that self conscious. And lastly, who worries about fuel? Did i say that? Because one chooses not to pay high fuel prices does that mean they are awake at night worrying about fuel prices? Its an investment choice, i choose to pay less at the pump.

What could i get that offers that level of comfort, reliability and cost?? Diesel 4x4s such as RRs are juicy and id rather have a porsche because im a fan. In regards to hybrid or electric, when it gets more mainstream and ill consider it. Right now i dont think its quite there yet. I Could be wrong though?

Personally, I would prefer to go the Cayenne Diesel route, especially if you have other cars for hooning fun too. My concern with LPG is more to do with the fact I chop and change motors frequently, so unlikely to see the benefit in the initial cost plus I would be concerned on the residual value effect. I would imagine trading it in with Porsche they are going to chip it hard, if take it in at all with an LPG conversion - but that might be my ignorance?

[thegoose]

MrTickle said:

Personally, I would prefer to go the Cayenne Diesel route, especially if you have other cars for hooning fun too. My concern with LPG is more to do with the fact I chop and change motors frequently, so unlikely to see the benefit in the initial cost plus I would be concerned on the residual value effect. I would imagine trading it in with Porsche they are going to chip it hard, if take it in at all with an LPG conversion - but that might be my ignorance?

It depends on the age of car you're looking at - a £15k Cayenne with LPG will be nicely affordable to run, and with or without it not a car that an OPC would retail so they'd take it at whatever the trade would bid them, same as if you turned up in anything else, be that a late Ford, a motorbike, or whatever.

[chris7676]

So it looks like most would like to pay more in taxes just to avoid "stigma" of LPG on their Porsche. I don't get it. It's cheaper, cleaner and nearly as effective as petrol, and especially makes sense in a big engined car. But that attitude could partly explain the financial state this country is in.

[JW911]

chris7676 said:

But that attitude could partly explain the financial state this country is in.

Or to put it another way, the more other people pay in tax, the less I have to.

[VonSenger]

chris7676 said:

So it looks like most would like to pay more in taxes just to avoid "stigma" of LPG on their Porsche. I don't get it. It's cheaper, cleaner and nearly as effective as petrol, and especially makes sense in a big engined car. But that attitude could partly explain the financial state this country is in.

+1. Very strange attitude.

[peterpeter]

VonSenger said:

A? performance drop off in a Cayenne, are you serious? There is a very very small drop, but honestly if you are concerned about performance dont buy a 2 ton 4x4, get a gt3 or similar. If you want effortless, reliable cheapish comfort, its a no brainer. I have the desmo and r8 for frills, Cayenne is for lugging the kids around not hooning.

hi

Im assuming you cannot warranty the ar with porsche?
Does it make any difference to the insurance?

sorry about the stupid questions!

[JW911]

You won't get a warranty with LPG. Depending on your insurance company, it shouldn't change the premium. My Rangie stayed the same. Make sure you inform them though.

[VonSenger]

No chance of OPC Warranty, Insurance was no change.

Touch wood, its been flawless, literally nothing but pads, discs and oil, amazing. Where as my pals RR TD6 has been a bag of spanners, He's just spent 3600 on compressor/suspension issues and gearbox!! Hence why I tried to persuade him against the idea. Hes only had it 6 months and its done half the mileage.

Strangely, it somehow gets logged at dvla, I did'nt bother telling them but when I booked my ferry tickets, it came up Porsche Cayenne S LPG!!

Don't quite know how that happens.

[Fat Albert]

TWG in Peterborough have one on their forecourt:
http://www.twgsport.co.uk/sales%20route/car2.htm
And if I hadn't just bought my Wife a 535D Touring I would be sorely tempted!

I am back to doing big miles for work and am wondering about swapping my 944 Turbo for an LPG car, Jaguar XK8 and Mercedes CL500 are both under consideration

[andy97]

and 5 available already converted on Autotrader, from £11500 to £20K, most seem to be 2003/4 models. Well, I can see the attraction, even if some other can't, particularly as I need to do a) big mileages & b) tow a race car a dozen times a year. However, I guess one issue is where the tank goes as I also need the ability to load loads of stuff in the back with the back seats down. If the tank is immediately behind the rear seats as in this one, then that's a problem: http://www.autotrader.co.uk/classified/advert/2011...

Edited by andy97 on Wednesday 13th April 16:50

[VonSenger]

andy97 said:

and 5 available already converted on Autotrader, from £11500 to £20K, most seem to be 2003/4 models. Well, I can see the attraction, even if some other can't, particularly as I need to do a) big mileages & b) tow a race car a dozen times a year. However, I guess one issue is where the tank goes as I also need the ability to load loads of stuff in the back with the back seats down. If the tank is immediately behind the rear seats as in this one, then that's a problem: http://www.autotrader.co.uk/classified/advert/2011...

Edited by andy97 on Wednesday 13th April 16:50

Yep, thats the problem. I had the choice of putting it where the subwoofer is but its only a 60ltr tank. Nowhere near big enough. So i went for the 100ltr which realistically only holds 90.

[andy97]

I know that some LPG conversions of other cars have "donut" tanks in the spare wheel well & others even have the normal petrol tank replaced with a "half and half" modified tank that has half the petrol capacity & the other half contains the LPG tank.

[DH01]

Although my mileage is fairly low, 6 to 8k a year, I think this warrants more investigation.

Thank you for your time in responding .

[VonSenger]

DH01 said:

Although my mileage is fairly low, 6 to 8k a year, I think this warrants more investigation.

Thank you for your time in responding .

No problem. Ill dig the invoice out and post the company that done it for me. Its a no brainer, unless youre the type that views wasting money as a status symbol. But you know what they say, those that bang on about having loads usually dont have a pot to p155 in.

As i said, my concern was reliability but its been outstanding! 35k miles and not a single issue. In fact its been more reliable than my 996tt was, although that did get driven as intended In terms of boot space its fine, we get 2 prams and luggage in there no problem at all.

[VonSenger]

For those that are interested. Ive just dug out the paperwork. It was done at Capital autogas in new malden surrey. Ive had no issues and he told me they do many Cayennes.

[Callughan]

Re: image I have a friend who owns a chauffeuring company and some of his clients prefer vehicles without the LPG cap on the car.

[TISPKJ]

Sorry to join late ...

I have been thinking on getting the wife a 4x4 as the "family" car, where we live it would be useful in the recent snow and I can see us getting more of the same in the future, also getting into skiing a couple of times a year with my boy so again useful in the alps.

Im thinking old shape Range Rover with the BMW diesel lump, returning approx 30mpg, My dads mint 04 Cayenne again approx 15-20mpg plus the cost of the gas conversion bearing in mind I know the car from new and the cayenne is double the money but fuel wise not a lot in it.

If I am honest even with the small miles we do Im not sure I could live with the 15mpg on a regular basis, 30mpg is about the same as our auto A class.

I am however amazed at the mpg from the new generation of baby 4x4 like the Quashkai and the yeti, I know there not a RR or Porsche but there not a bad car, a quick look seemed like circa 40-50mpg even for the petrol, now LPG one of those and you could fill up once a year :-)

[DH01]

Many many Thanks VS, I've just spoken to Capital at New Maldon . Even with the fairly low mileage that I do the conversion should have paid for its self in about 18 months and then it's cheapo motoring after that, something that's a novelty in a Cayenne !
Having had the car for a fair while now it fulfils all my needs, load lugger , super comfy, brisk and has been reliable. Now with a way to return to fuel prices of when I bought it , seems I'll be hanging on to it for a few more years. Bliss.