Range Rover V8 4.6 '98 LPG Conversion

[Doug Stormforce]

Anyone done this?

What sort of consumption did you end up with, what did it cost, any tips?

[Nos4r2]

Originally Posted by Doug Stormforce

Anyone done this?

What sort of consumption did you end up with, what did it cost, any tips?

Doggypaddle would be the guy to ask-if it's got a V8 Rover in, he's either done it or messed with it.

Personally I'd flog it and buy a diesel though. The cost of LPG conversion would be a large proportion of the value of a '98 RR (around £1500 for the conversion IIRC) and £1500 buys an awful lot of fuel. It won't cost much less than a diesel to run afterwards-specially not when you factor in the conversion cost and the lifespan of a RR that lives next to the coast before it starts to rot.

[Mollers]

On the other hand Nos, the 2.5 TDI in an RR is flater than a witches t*t. At least the 4.4 on gas would have some beans about it.

[Nos4r2]

Originally Posted by Mollers

On the other hand Nos, the 2.5 TDI in an RR is flater than a witches t*t. At least the 4.4 on gas would have some beans about it.

Yeah, but I didn't say buy a diesel RR, just a diesel.

[Doug Stormforce]

Originally Posted by Nos4r2

Personally I'd flog it and buy a diesel though. The cost of LPG conversion would be a large proportion of the value of a '98 RR (around £1500 for the conversion IIRC) and £1500 buys an awful lot of fuel. It won't cost much less than a diesel to run afterwards-specially not when you factor in the conversion cost and the lifespan of a RR that lives next to the coast before it starts to rot.

I take your point. The upside of the current RR is is low mileage (65K) for its age and so far pretty reliable, I have ironed out the few faults that it came with. The body and interior are in very good condition for their age. I think if i flogged it and spent similar money on another one i would not be looking at such a good car and would take a hit on quality. I am not really a fan of buying 13 yr old vehicles but this one came from a mate.

Anyone got any figures i can base a more scientific decision on?

[Leapy]

My neighbour has an RR with LPG...it's an early Jag engined 4.2V8 RR - and therefore the new shape - but the following still applies.

To me, whilst he thinks it's the dogs whats-its, the maths don't add up. He tells me it does less mpg on LPG than petrol and cost £1500 to convert. Most people think their car does more mpg than it actually does so when he says it does less, and he's a supporter of LPG, I'm moved to believe him. Plus, there's occasional 'niggles' with the LPG system involves a long round trip to get them looked at as local expertise is non-existant. Plus, there's that tank.

I can speak to him about more numbers and details if you wish. Last time I spoke he was claiming 18mpg on petrol, less on LPG. My RR Sport diesel does 28mpg.

For me...diesel every time.

[Nos4r2]

Originally Posted by Leapy

My neighbour has an RR with LPG...it's an early Jag engined 4.2V8 RR - and therefore the new shape - but the following still applies.

To me, whilst he thinks it's the dogs whats-its, the maths don't add up. He tells me it does less mpg on LPG than petrol and cost £1500 to convert. Most people think their car does more mpg than it actually does so when he says it does less, and he's a supporter of LPG, I'm moved to believe him. Plus, there's occasional 'niggles' with the LPG system involves a long round trip to get them looked at as local expertise is non-existant. Plus, there's that tank.

I can speak to him about more numbers and details if you wish. Last time I spoke he was claiming 18mpg on petrol, less on LPG. My RR Sport diesel does 28mpg.

For me...diesel every time.

I did actually consider buying an already converted LPG V8 RR or V8 Disco a couple of months ago when I changed cars so did a bit of research.
From what I could find out,it will do less mpg on LPG (and be slightly down on power-but with the amount of power from a 4.6 RR it's a moot point really).
The saving is based on miles per £ as LPG is so much cheaper, not MPG. I think the road tax is cheaper for a dual fuel car too.

However, unless you go for an underslung tank (I don't like that idea much) you'll lose a lot of boot space. Range won't be as far on LPG unless the tank is absolutely huge too and the ones I looked at still had to be warmed up on petrol.

I bought a diesel Toyota.

[Leapy]

Originally Posted by Nos4r2

It will do less mpg on LPG (and be slightly down on power-but with the amount of power from a 4.6 RR it's a moot point really). The saving is based on miles per £ as LPG is so much cheaper, not MPG.

Yes, but how many miles do you have to do to offset the £1500 and how long does that take?

Hang on...Nos you changed your post

[Nos4r2]

Originally Posted by Leapy

Yes, but how many miles do you have to do to offset the £1500 and how long does that take?

Hang on...Nos you changed your post

Yeah,I realised I had left a load out.
Just doing the maths... On petrol at current prices at 18mpg, 3 miles per £ so that £1500 gives you around 4500 miles.With around a 30% saving on LPG-about 4 miles per £.

If my figures are correct, 18,000 miles not including cost of servicing the LPG system.

Finished messing with this post now

[Doug Stormforce]

Nos

I think your right, the conversion is not a particularly good investment.