I found that the only time I run into turbo lag is if I try to accelerate quickly from a dead stop, other than that, it's non existent.
I chose the EB 3.5 over the 5.0 mainly because of fuel mileage differences between the 2. It's not much of a difference, (2mpg hwy IIRC) but it's still 10%, it adds up after a while. Mileage I'm seeing so far: 20-23 Hwy (depending on speed) and 13-15 city. City mileage so far for me has been a bit of a disappointment. I'm averaging close to 18 mixed, so it's pretty much on target with the EPA in that respect. Much better than the 13 avg my old 04 5.4 was getting.
I do not tow heavy often, and haven't done so with this truck yet, but I have no doubt it will do just fine. I would not expect to get better mileage out of the EB over the 5.0 while towing. The small gas tank as mentioned earlier is an issue of you do plan to tow long trips on a regular basis.
I am also not concerned about the reliability of this motor. I realize I do not have a lot of time on the truck yet, but for FoMoCo to be pushing this engine in it's best selling platform has to mean something.
Last edited by jntibs; 07-07-2011 at 08:50 PM.