ive got the tank in the spare wheel well in the boot,ive had no problems running on gas for 12 months and the car was converted several years before i bought it.
vauxhall have been selling dual fuel cars for over ten years as far as i recall.
Lexus doesn't offer a diesel option on the rx either,maybe they know something we dont lol
Seriously though,get the master cylinder recall work done first,because the dealer wont do it until you get the gas system removed out of they're way that cost me £80