I now have 500 miles on my 2012 RS-S with SE5 trans. and I am only averaging 20 mpg. I have not been able to get more than 120 miles per tank. I was told I would get between 30-35mpg and that it had a 6.6 gal. tank. Well I ran out of gas today trying to see how far I could go on a tank of gas (120miles) well when I filled up I could only put 6 gal. of gas in the tank. I can't believe I get better fuel mileage (22mpg) in my V6 suv and can go a lot farther on a tank of fuel (350 miles). My question will this fuel mileage improve and what is the accurate fule capacity of the spyder.
Last edited: