2005 Mustang GT

[JTGrant]

I am getting ready to order a new mustang. The only thing that really bothers me is that Ford recommends 5w-20 oil. I was just wonder after the intial break in of the engine would it be ok to use syn mobil 1 5w-30. I realize the new fords are biuld will tighter tolerances but the 5w-20 really makes me nervous. It seems to me that Ford doesn't care about their engines lasting, or minimizing wear, just thinking of the gas mileage. (CARP thing I think). Or what is a recommended viscosity besides 5w-20, that works well in the new 4.6? Thanks

 

[n0v8or]

See this thread. There are many others like it. You may feel better about 5W-20 after reading it.

http://www.ford-trucks.com/forums/a... Expedition 4.6L Motorcraft 5w-20 2,963 miles

 

[page90lx]

Mobil 1 makes a 5w-20(synthetic) i get it at the local wally world .

 

[streetstang03]

5W20 is fine. all the 01+ GTs are suggested by Ford to run 5w20.

 

[sgarlic]

I run the Mobil 1 5w20 in my '04.. no problems, oil pressure is fine (autometer guage.)

After 36k, run whatever you want If a problem develops before then, running the 5w20, it's under warranty anyway.