do you really think you should be changing your own oil if you cant even find the plug, maybe try the bottom of the oil pan
The 2005 GMC Sierra-2500HD has 16 valves.
The 2005 GMC Sierra-1500 has 12 valves.
The 2005 GMC Sierra-2500HD has a V8 engine.
The 2005 GMC Sierra-1500 has a V6 engine.
The 2005 GMC Sierra-1500 has overhead valves (OHV).
The 2005 GMC Sierra-2500HD is a gas-powered vehicle.
The 2005 GMC Sierra-1500 is a gas-powered vehicle.
The 2005 GMC Sierra-2500HD has overhead valves (OHV).
The 2005 GMC Sierra-2500HD has a 5-speed manual.
The 2005 GMC Sierra-1500 has a 5-speed manual.
The 2005 GMC Sierra-2500HD's turning circle is 43.8 ft..
The 2005 GMC Sierra-1500 is 17 ft. 1.7 in. (205.7 in.) long.