i had the same problem, but mine were starting to corrode/bubble under the paint, like an old alloy wheel does.....i scraped off the corrosion, and used touch up paint, and they work like a dream now.

LPG MPG is likely to be the same as petrol if not a little less due to the lower calorific content of LPG over petrol...its the price which makes it appear to offer better consumption. Besides LPG is normally a conversion, so the trip computer or display doesnt know what consumption your...