Does having 2 gas tanks increase or decrease the value of a Ford F150?

None of the value estimators list this as a data field option. Does having 2 tanks affect the resale value?

No as they all had dual tanks

Nearly all value additions are listed in the guides. If its not listed, its either standard or its lost any extra value. Like cruise for an 8 year old car.

  • If I put lots of money in my car, does it increase its value? I bought my 2005 ford taurus for 2,800 USD. I have put brand new tires for $325, catalytic converter ($739 including labor), repainting and removing scratches ($1,700), shocks and struts ($752) new carpet ($359). New headlight assembly ($95). Does this raise the value of my car? Can I sell it for more than the kbb value?
  • Question about ford crown victoria fuel tanks? I have a 2001 crown victoria police interceptor. I'm trying to install a new fuel tank. Problem is that the new tank has a different style hole on top for the pressure valve regulator. Can I just use the newer style regulator that will fit the new tank or some kind of adaptor for the stock valve? Does anyone know where I can find a tank like the original, it has a recessed hole with tabs for that valve?
  • How to decrease the amount of backlash in my Ford 8.8 rear end? I know I can change my ring gear and pinion gear but is there a way to shim the pinion gear? Any suggestions?
  • Does acetone increase gas mileage? I've been trying to convince my dad to get buy me this 2004 Ford F-150 XLT with 5.4L V8. I really like this truck because the 5.4 produces 300 HP and my crush really likes F-150s. The reason my dad won't buy is because it gets 13 city and 16 highway. So i was wondering if acetone really does increase gas mileage and also without harming the engine. SERIOUS ANSWERS ONLY Please