Fushion_Julz wrote:I know you're a fan of LPG, Brian, but the maths don't add up for most people, in my opinion, anyway...
If you can't install it yourself, the initial outlay is at least £600 and probably nearer double that.
The fuel economy on LPG only adds up whilst the UK Govt. has the reduced excise rate for the fuel over petrol and diesel. Even so, a car that does (as per an avg E30 325) 25mpg on petrol will do an equivalent 35mpg or so on LPG taking into account the lower cost but increased consumption....
Given a 325 is never going to be worth much money, especially if it has been non-standardised with an LPG conversion, the intial cost of the car (£1500, say) plus the conversion cost makes the car worth around £2250 in inital outlay but on resale will only return the car value (£1500)...
A small, efficient modern diesel will return around 45-50mpg....(for example 1.4HDI Peugeot 206), can be bought for around the same money as a 325i, costs only £30 p/a in road tax and even if it loses all of its' value in 2 years will still be better value covering 14K miles p/a...
My commute to work is around 20 miles each way (so 200miles per week)...add that to the other leisure use, my E36 328 racks up around 14K per year...same as the OP will do, I suspect...
I like my E36, but I have considered a switch to something a bit more economical for a daily...Only the fact I claim a (generous) mileage allowance that covers my commuting costs is making me hold fire....
You're vastly missing the point in a number of ways and your maths is wildly off stating that a car doing 25mpg on petrol will work out at 35mpg equivalent cost on LPG (unless the LPG system is faulty).
Someone doing a large regular commute is the ideal candidate for LPG.
LPG allows you to run a gas guzzler for the price of a normal diesel (75mpg bluemotion polo excluded, but I only got 60mpg when I did 500 miles in one I had as a hire car). It means my E46 330i is more economical than the equivalent 330d and very similar to a 320d and I don't have to drive a stinky smoky dieseasal.
My 325i does 22mpg on LPG, I don't commute with it so when I do get to drive it I thrash it everywhere. Compared to the price of petrol the equivalent is around 42mpg, compared to the more expensive price of diesel that's 44mpg. Gentle driving, you know, at the speed limit not straining your neck muscles out of every corrner 50mpg would be easy.
Yes, 44mpg from a 325i E30.
Now lets look at the modern turbo diesel, every time it goes wrong it will cost a £1000, turbo, injection pump, injectors etc etc the same cannot be said of a NA petrol vehicle.
Ps) The worst bit about LPG is that it will kill your exhaut more quickly and there is relatively limited places to fill up, and filling up takes a minute or so longer.
Pps) I was a complete advocate of diesel until they removed the sulphur from it. The sulphur was the main component of the EP (Extreme Pressure) lubricant component of the fuel which protected the fine mechanicals of the diesel injection system and provided lubricant to the cylinder walls of the combustion chamber.
Ppps) And as for recommending a peugeot. . . really what has the OP done to you? Tortured a family member to an excrutiating death.