Were you using the A/C? If so, it's probably condensate from the evaporator. Nothing to worry about, it's normal. You will see this just in front of the passenger seat on the ground.
The 2007 Nissan Frontier has 16 valves.
The 2007 Nissan Frontier is a gas-powered vehicle.
The 2007 Nissan Frontier has a 5-speed manual.
The 2007 Nissan Frontier has an inline 4 engine.
The 2007 Nissan Frontier is 17 ft. 1.5 in. (205.5 in.) long.
The 2007 Nissan Frontier has a 27.8 degrees angle of approach.
The 2007 Nissan Frontier's turning circle is 43.5 ft..
The height of the 2007 Nissan Frontier is 5 ft. 9.7 in. (69.7 in.).
The 2007 Nissan Frontier has double overhead cam (DOHC).
The maximum payload of the 2007 Nissan Frontier is 1001 lbs..
The curb weight of the 2007 Nissan Frontier is 3675 lbs..
The 2007 Nissan Frontier runs on regular unleaded.