He's referring to an aftermarket exhaust. MBRP does seem to be the favored brand when it comes to the 6.0L.

 

yup mbrp! its the best

 

I was reading the alternative fuels forum a while back, the guys who are big into bio and have a lot of experience with that sort of thing said that by using new VO you add lubricity back into the ULSD. B-5 is 5% bio and 95% dino and is acceptable to use in the 6.0. By keeping my ratio at around 3% or less I am well under that ratio. Like I said, so far no problems and it does seem to be just a tad smoother. I think the post I read it in had "Canola oil" in the subject line but I can't be sure about that. I did a quick look and didn't find it, maybe a thorough search will be needed.

I have the SCT XCal2 from Matt and have sent him my strategy codes. Since my truck has an older code that his base files don't work well with, he emailed me that he will have to write the tunes for me fully by hand. I am willing to wait for them patiently as I know he's bussier than a one-armed paper hanger of late.

OK, I found that thread using the search feature. It's well worth the cost of a three year "Supporter" membership, at least to me.

https://www.ford-trucks.com/forums/6...noila-oil.html