Best Oil for 2008 F250 6.4L???

[ItsABeautClark]

Just purchased an 08 F250 6.4 SD and want to go ahead and change the oil (even thought the non ford dealer did it or said he did).

I know I need to use the CJ4 type but I am interested in what you guys think is the best brand and weight to use.

I live in central alabama so rightnow we are iin the heat of summer and I drive about 60 miles a day at an avg speed of around 50mph. I pull a 8600# travel trailer every other weekend.

I will definatly use Motorcraft filters as I have seen on the forums to avoid others like the plauge.

Appreciate the input...

[jac97psd]

I use Rotella 15W-40.

[blackcloud2k]

regular dino rotella 15-40 gets the job done, if you want to go synthetic then I would go with mobil 5-40.

[Big Angry Hillbilly]

Rotella 5w40 syn is good too.

You can run the 5w40 all year round, too.

[H0USE]

Rotella 15W-40

[ItsABeautClark]

Rotella seems to be a popular choice. I noticed it is more expensive at Wal Mart. I am really not opposed to the higher price, if it is really better.

I read a lot of other posts that urge to stay with Motorcraft. Is there a comparison survey or test that shows which oil is superior?

[MTImodquad]

Is anyone running schaeffer's??

[Iqoair]

Using the Mobil-1 5W40 Delvac here.

[dieselkane]

Shell Rotella T6 5w/40 syn for me.

[BlueF350]

Rotella T6 5w40 every 5k miles