I'm an independent AMSOIL dealer and can save you some money as well as protect your car and enhance its performance. My web site is still under construction but you are welcome to visit at
LBC Performance Motorsports Group or go directly to the AMSOIL store at
AMSOIL Store .
AMSOIL has three types of pure synthetic oil for the Duratec V6 and it really depends on the number of miles you drive per year and how comfortable you fee with "extended" oil drain intervals.
The first is the 7500 series and can be purchased in either 5w-30 or 10w-30 for the Duratec.. This will operate for 6 months or 7500 miles, which every comes first. I recommend the AMSOIL filer also, as it is more rugged and has a better filter material than any of the others I know of.
The second fluid is also a 5w-30 or 10w-30 but is good for 24,000 miles or 12 months..etc. etc.. Note that the filters still are recommend for changing every 6 months or 12,000 miles..
Now the one I use in my track preparied Cougar..
I run the 0w-30 which is a 36,000 mile or 12 month synthetic.. The improvement in preformance and increase in gas milage has been surprising..
You can purchase these at the AMSOIL Store web site and directly through me and receive a 10% discount on your oil purchase.. Email me directly for information .. remember that this discount is not available on the AMSOIL Store web site..
Other grades of oil are available such as the 10w-40 which is made for the turbo and sc cars or 20W-50 for the profesional track cars...
Any questions ?? just email me at
Mr_Froge@lbcperformance.com 
