I just purchased a 2000 K12RS, 29 500k's. Runs smooth but very, very heavy on fuel. Filled up yesterday, did 105 k's, filled again today and it took 13.5 liters! WTF??? Surely this cannot be normal. Also when I started it this morning, it smoked quite heavily for a minute or two and then it was normal. Topend seems to be around 210 - 220. I sold my Blackbird and already I regret it, if this is what I'm going to get from the RS. What do I look for to solve this problem? I'm desparate as I would like to do a lot of travelling but with the price of fuel in RSA this will make it a financial killer.