redjewel2ss

your comment is valid if i were to use a soap like Dawn or cheap over the counter car wash liquid that's not pH neutral. Adam's car shampoo is pH neutral and completely safe to use in direct sunlight. it washes away without any problems when it dries. i also use softened water on my initial rinse and RO water on my final rinse; i have a water line in my garage tied into the home water softener and RO tank because the tap water here is terrible. never had a problem with spotting or degradation of sealant/wax on the finish. i do pull into the garage to towel dry though. direct sunlight is unavoidable here except at night, and i'm not one to wake up early or stay up late to do a wash

6oz of Adams Car Shampoo in a 36oz water bottle connected to a MTM Hydro foam cannon on my pressure washer

my new Denali getting a bath

if its not the upper control arm like CapitalTruck mentioned, its most likely a ball joint! had the exact same thing happen on my old truck (98 dakota) and it was the ball joints that were bad

i agree with the other guys, check your engine temps, do you have an after market thermostat? if so, is the ECU re-programmed for it? inspect your O2 sensors and cats. if one or both of those are bad = bad mileage as well i wouldn't put the max psi in the tires, only in the rears if your hauling a load. i used to work at a tire shop and we would tell people with larger than factory tires to put 10-15 psi less air than the max, as long as that didn't go below the factory specs. on E rated tires we set them to 50 psi. on C and D rated tires, we usually put 40 psi unless the max was less than that. don't expect better than 15mpg highway with a lift, taller tires, and 3.73 gears with that 4 speed