Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[hawke113a]

hi guys..i have a 2.5 elite and im thinking about an lpg convertion....the wife uses car for work,every now and then,but she does a few miles with work....so i thought lpg would bring fuel cost down a little.....has anyone had it done and is it worth while....ive been on a few websites and some say the v6 miggy doesnt go well with lpg due to two separate inlets....an help is most welcome...cheers guys 

[ffcgary1]

they dont know what they are talking about. the v6 is easy to convert. pm jamesv6cdx for details or see he maint guides. lpg threads

[Entwood]

You'll save around 10 pence a mile on average .. so 15p a mile instead of 25p a mile ... you now need to work out how many miles you do against the cost of the conversion do see if it works for you.

DIY conversions around £750 ... mine was done 5 years ago professionally (before the DIY was up and running) and cost £2180 ... took 2 years to reach "payback" but has been saving me money for 3 years ..

Performance changes not one tiny iota, if correctly set up you do not know which fuel you are on. I tow regularly a 1600kg unit, and the LPG doesn't even care .. other than saving me shed loads

The only other thing to consider is where you get your LPG from, and the size of tank you want, as a small tank and fuel not locally available will affect running costs badly

[martin42]

I run a frontera 2.2 petrol,takes £33 @ 73.9p ltr,do average 225 to a tank,which is not to bad,but i brought the frontera already converted,and i cant tell any difference when running on lpg or petrol.

[D]

There is a chap near Leeds that does LPG conversions. Seems quite decent. I have had him do some work on my LPG system with no issues.

[TheBoy]

Fuel savings are around a 3rd. So if your current costs are around 30p per mile, expect running on LPG to be around 20ppm, taking into account petrol usage.

The GM V6 converts well if using a sequential setup. If any mongrel is suggesting a mixer setup, shoot them, as they are thick as two short planks.


Both my v6 Omegas are running DIY LPG kits

[Lazydocker]

Converts very well. Done 40k on LPG in the current car and did around 65K in it's predecessor (A 3.0)

[adey2]

both my migs are on prinns systems, one was converted at 40k and now got 120k on clock, other i did as a diy conversion, doesnt miss a beat unless missis has killed it again, as others say vaux v6 engine seems to run flawlessly on it

[chrisgixer]

See the guides in maintenance section.

Worst bit is the inlet under the plenum but nothing to difficult. And for me personally, soldering in the electrics to the loom.

I'd also take the opportunity to service any coolant leaks in the valley of the v, like re seal the oil oil cooler cover plate, change the stat, make sure the ignition system and hence cam cover seals and scuttle or all sealed, while its all apart, and it'll be good for the life of the car without complicating set up with missfires and poor running.

So in comparison with some installs with exposed plastic manifolds they can just drill into and drape fuel lines over the engine, then yes, it's more involved on an omega, but difficult? No, certainly not. If they think an omega is difficult to convert then they're in the wrong job.

But you do need to be fully clear where every component will be sited and how your going about it before you start. Cop 11 regs need be passed to get a certificate. Do this for piece of mind and insurance purposes. IMO it gives another view on your work and prevents corner cutting. Which is to be avoided obviously.

The guides are quite extensive so worth a look. Good luck

[hawke113a]

cheers guys...looks like ill be saving for a while...looks like its worth doing...thanks again

[omega3000]

You'll save around 10 pence a mile on average .. so 15p a mile instead of 25p a mile ... you now need to work out how many miles you do against the cost of the conversion do see if it works for you.

DIY conversions around £750 ... mine was done 5 years ago professionally (before the DIY was up and running) and cost £2180 ... took 2 years to reach "payback" but has been saving me money for 3 years ..

Performance changes not one tiny iota, if correctly set up you do not know which fuel you are on. I tow regularly a 1600kg unit, and the LPG doesn't even care .. other than saving me shed loads

The only other thing to consider is where you get your LPG from, and the size of tank you want, as a small tank and fuel not locally available will affect running costs badly

Is this still the going rate for a conversion 

[05omegav6]

Yup based on parts only, as it assumes diy labour is free...

[omega3000]

Yup based on parts only, as it assumes diy labour is free...

Not bad then  , what size tank would this price give 

[05omegav6]

The largest four hole tank you can fit donut tanks are more expensive but cylindrical tanks hAve a greater capacity for the same price...

[chrisgixer]

Yup based on parts only, as it assumes diy labour is free...

Not bad then  , what size tank would this price give 

Seen some installs with a 100litre tank. But that completely  covers the through space behind the back seats and can weigh more when full lowering rear ride height slightly.

Do of you tow? Do you have self levelling? Do you need any element of the through space? Do you need a the full boot area?

Anything from a 100ltr cylinder accross the back seats to a donut tank in the spare wheel well is possible, depending on your needs.