If you add modifier when the fluid doesn't need it the clutches will slip too much to the point where you only get traction to one wheel. You don;t need to add modifier to the Mobile 1 - 75W140...

 

ehgeeray, that's what I read on the forums, thanks alot. It seems to be working fine. What are other's opinions on Mobil 1 75w140?

RSUPER,

The EGR delete is working out great. No issues whatsoever with it. I cannot intelligently speak to any performance gains because I did not own the truck very long before I did the delete. But not routing exhaust into the intake and not purposefully heating my coolant even more just seems like an all around better way to travel.

I did not get any codes, I did not have any special tunes. I merely reinstalled the EGR valve, plugged it back in, and started the car.

 

Thanks for shout back. Makes me want to do it even more knowing that.

 

For what it's worth, because you have an '05 like I do, you might get lucky not having to get a special tune. From what I have read, the consensus is that some '05s you can just plug back in the EGR valve, and some you'll have to get a tune. Hopefully yours will be like mine.