I bought the 3.5 the first year they came out with it 2011, I needed a new truck as the chevy I was driving was a turd. I called it a gutless wonder, zero pulling power, and it started drinking oil at 70,000 miles. I am now in my 4th 3.5 eco boost. For those who say I don't need or want a turbo truck....well you have never been in one. They have very good pulling power, they will use gas while doing so however. But not pulling my 23 model gets between 21 and 22.5 mpg. But...put a topper on and drive 80 down the interstate and I found I get 15-16. Topper plus pulling a 16 foot enclosed trailer I get between 9 and 10.5. Those are real numbers punched with a calculator and not off the trucks milage display. My buddy thought his new chevy would get better milage pulling the trailer one year, so we used his truck to pull the trailer. He did not have a topper on his truck either. We got 7 mpg, was glad I had extra gas cans with, he ran it dry once, tiny little 24 gallon tank. Plus it had a very tough time pulling that trailer. He got his eyes opened and we didn't even go thru the mountains, just eastern Montana. I have not had any engine trouble with any of the 3.5 ecoboosts ever. I change oil every 5,000 miles and put full synthetic mobile 1 in it. Never had any engine rattle at start up like some others have had. Will buy another 3.5 when the time comes
