I'm looking at a 2016 Suburban LS with 5.3, cloth, Max trailer package, smooth ride air shocks, 20" wheels with 61k miles. Dealer wants $39k. I test drove it today, first time in this model year. I've driven a rental 2008 Tahoe, and this is more powerful. Smooth with positive feeling shifts like mine. Do these have the AFM and are they still burning oil and wearing out rockers? Any issues I should look out for? thanks.