love 2 tank syst. done over 80k in my old 1984 landcruiser on svo.it was pretty easy to install. used a plasic jerry can for my start up tank ,a couple of soleniods from the wrecker off a LPG syst.[be sure to take small filter out of svo solenoid] The most complicated thing i did was to replace the fule line between the lift pump and filter with a copper pipe inside a copper pipe plus reducers & tees to make a heat exchange useing coolant. It all works like a treat. Although during the first winter there was a couple of times when i got up on a frosty morning to realise id forgotten to change to dino befor shutdown. bleed, bleed, bleed, lots of steaming hot water poured over injectors & pump etc. You find you only have to go through that a couple of times and you soon smarten up. i now have designated landmarks to and from home in all directions as switching markers Once your in the habit you just do it. also to cut down on any polimer build up i always add a bit of dino say 20% in summer 30% in winter so if i do forget it makes start up pretty hard but not impossible. i added a push button glow plug overide switch for just sutch an occasion