According to the 2005 Mercury Grand Marquis Owner Guide : ( 19.0 US. gallons )
For a 2005 Mercury Grand Marquis : " regular " unleaded , 87 octane According to the Owner Guide
owners manual.
on top of gas pedal
Unbolt it from the floor.
location of heater control valve on 2005 mercury marguis ?
The 2005 Mercury Grand Marquis , 4.6 liter SOHC , V8 engine has ( 2 ) timing chains ( 1 timing chain to each cylinder head )
No
According to a website I was looking at : For a 2005 Mercury Grand Marquis : ( 16 city / 23 highway / miles per U.S. gallon )
According to the 2005 Mercury Grand Marquis Owner Guide : With engine oil filter change : ( 6.0 U.S. quarts / 5.7 liters of 5W-20 )
6 quarts will put it right on the mark.
According to the 2005 Mercury Grand Marquis Owner Guide ( and one of Fords websites ) The ( Motorcraft FL-820-S engine oil filter is used )