Over the last two days, I've done 450 miles in my Omega 3.2 V6 auto.
30mpg exactly. This was on petrol. Most definitely NOT miss daisy driving, and a boot full of jack, stands, tools, etc. Gloucester, Hemel Hempstead, Castleford, and back to Gloucester. So mix of A roads and motorways. Final run home was scenic route, Fosse Way, and I had a little fun in the twisties coming back through Stow.
Basically used £100 worth of petrol.
Which, To be honest, is not bad for a big thirsty auto.
On gas, , my MPG would have dropped from 30, to around 21-23.
On gas, taking into account the MPG drop and local prices, my trip would have been £64.
So on one trip, I would have saved £36 by using gas.
Maybe an incentive to fix my LPG lead and get it calibrated now it's an auto again! Still, I thought it wouldn't do it any harm to have a good run on petrol
It might not seem like a lot, but that's not to be sniffed at, really - it's a good wedge towards a curry!
Personally, I can only justify LPG because I can fit and maintain it myself. If I had to pay someone, I wouldn't consider it viable..