I have a 2008 C70 with bad gas. what's the best way to drop bad gas from the gas tank?
I tried the siphon method, but I suspect an anti-theft screen is preventing that method. Is there a drain plug I can remove? I've never seen the tank before so steps to access the tank would be much appreciated. I'll probably need to replace the fuel filter as well. I've never seen the bottom of the car before so steps to access the tank would be much appreciated.
thanks

 

'Bad gas' what do you mean by that?

 

Like v5024 said, what do you mean by "bad gas"?
There is no drain plug or out of tank fuel filter. The only way to drain it is by dropping the tank or running the car with a fuel pressure gauge connected with the relief on.