Hi, Iíve been thinking of doing this LPG thing for a while as it is claimed that by mixing approx 10-20% LPG to diesel it will give more BHP, Nm, MPG, and clean up the emissions, so after a lot of research I thought I would give it a go and let you know how it all went, although I have fitted lpg systems in the past to petrolís I found the diesel one quite simple to understand, the biggest pain was the lack of space under the 3.0CDTIís bonnet to fit the necessary parts, but after a bit of pushing and shoving I got it all done in about 4 days, the tank will hold 48 litres of lpg and is a doughnut type so no boot space has been used up, and I always use the tyre repair in a can stuff so dumping the space saver wheel didnít bother me. On the first fill up I only put in about 30 litres and then proceeded to tune it up as accurately as I could which meant driving under load and turning the gas down until no pinking or knocking can be heard, then it was time for a proper drive! The first thing you notice is that the car seams to start a little easier, sounds a bit quieter, and runs smoother, then you put you foot down, and it pulls, and I mean pulls! I already have a CRD2 fitted to it and it was like fitting another one! At 2000rpm in 4th I booted it, switched the gas on and it felt like another turbo kicking in, just to give an idea of the power and torque increase, after a few days of playing I put my sensible head on and drove normally and I noticed the work runs mpg went from 48 to 62mpg! Then we had a long run down to south Wales and back and averaging 59.6mph (slow I know but I was milking the mpgís!) the car averaged 80.2mpg!! And no I wasnít on the back of a truck or being towed! When I filled up we had covered 872 miles on one tank! And I only got 11 gallons into a 13.4 gallon tank!! Meaning it would have done the 1000+ that the trip comp said! And when I filled the lpg tank I only got about 28 litres in meaning I had only used about 10 litres of lpg , thatís about £4.45 for 200 more miles, The last time we did the same exact journey at the same speed, time of day etc (early am!) it averaged 66mpg, also the particulate filter problem I had where it would clean itself every 400 miles has stopped, im still waiting for it to do it after its over 800 miles late, so the lpg really dose clean up the emissions! We have a massive 2500mile holiday up to the Highlands shortly so I will let you know how it went when I get back.
3.0V6 CDTI Vectra SRI, CRD2 had 229bhp 500Nm, now who knows!!!