Tip of the day: If there's a tanker at the pump, fill up somewhere else.

Tanker's at gas stations do not mean fresh gas.  When the tankers fill up a station's undergound tanks, the turbulence stirs up the dirt and sediment in the tanks making the gas you're pumping into your car dirty.  By keeping your gas as clean as possible you will keep your car running better for longer. 

 

tip taken from rd.com