Engine oil

msbk01 · #1 (**permalink**) 11-27-2008, 09:19 PM

Has any one found an oil that increases HP & possable FUEL ECONOMY?
I know theres ad's that claim it.but has anyone tried them?

TMN · #2 (**permalink**) 11-28-2008, 04:50 PM

Personally I tend to be skeptical of claims such as that. Oil is as slick as it can be.

Mark · #3 (**permalink**) 03-01-2009, 08:39 AM

Royal Purple.

Bears1950 · #4 (**permalink**) 02-01-2010, 04:36 PM

I have used many oils over the years and Motorcraft's semi sythetic is as good as any. I would not expect to see any gas mileage increases through the use of anyone's motor oil. Gasoline engines and particularly Ford's Mustang engine, have become so sophisticated that saving gas is more a matter of how you drive then the type of oil you use.

Frankly I have gotten over 27 mpg at 75 mph with my 2009 GT. That is fantastic as far as I am concerned and is nearly as good as some Japanese rice burners get on measly 4 cyl's.