I'd love to give "lean cruise" a try. Never say never, but I'm a DIYer and don't have the skills / tools / time.
Also, there's a lot of big hills, mountains and elevation change between TX & CO that might put a monkey wrench in a lean cruise tune?
Many of us lack the time to do many of the things that others routinely handle over the course of any given day.
Some of us make our own coffee, some of us wrench on our cars, but it's totally ok to let others handle stuff like, say, pcm / ecm & tcm tuning. Most of us don't do our own dry cleaning, right?
To oversimplify down to a gist, whether a pcm can Lean Cruise or not, it simply canNOT enable much less activate unless the engine is, well, pretty much cruising. For example:
if towing, might only activate during decels, maybe? Unless the towed object has outlandishly low drag?
if accelerating BARELY enough for Miss Daisy to notice, it might only activate or stay active downhill?
if cruising in 4th, it MAY activate, and/or stay active, if you drive like you want / need OVER 18MpG.
Meaning, only got 22MpG once, nearly pulled my hair out 'cause I had to let nearly EVERYONE pass me.
I'd be able to spend LOTS more time in Lean Cruise with 4.10, or with 3.73 & 235/60R18, and drive more normally.
How I normally drive I NEVER see it - I have to consciously chill the hell out.
Lean Cruise is FAR more likely to be FAR more useful with lighter cars with less drag area.
The criteria are slightly tougher for a driver to stay in than V4 mode.
More gearing helps too, up to a point.
You never need to worry about it though. The redundant safeties make it far safer than V4 mode, is my point.
It just won't activate or stay active unless you are driving very gentle-like.