Hi Bill I have LPG fitted to my front wheel drive Audi a6 1.8t awt engine code. I read that lpg has an octane rating of 102-108, I concluded that this is comparable to the RON rating of petrol. Probably a silly question given your experience but are you able to remap to take advantage of the lpg octane ratings and make the engine generate more power? The car does feel a bit slower when on the gas compared to petrol. The lpg ecu shadows the petrol ecu which is remapped by a guy in Ballymena, who I would prefer not to use again. The lpg kicks in after 0.3-0.5 of a mile so it wouldn't have to run on alternate settings for the petrol side of things for very long. Many thanks, Samuel.