[ocho-eco]

I searched around for "highest mileage 3.5" but the only thread that I came up with is closed.
I realize that my truck is not really that high in mileage but it's a start...

2018 502A Lariat 4x4 with 130K miles
This truck has had an oil change every 5K miles with Motorcraft semi-synthetic oil and Motorcraft filters.

58K miles - Rear brake pads (Rotors turned)
80K miles - Plugs done
95K miles - Oil pan replaced under extended warranty. (Plastic lower pan)
99K miles - Cam phasers and all related components done under extended warranty. Newest, closed face, phasers were installed, I paid for all new parts the warranty wouldn't cover including water pump even though it was good.
100K miles - 180 degree Motorcraft thermostat installed once extended warranty expired. (Best mod ever)
100K miles - Full transmission fluid exchange. (filter untouched)
100K miles - Transfer case and rear diff fluids changed.
115K miles - Entire AC system replaced due to bad compressor. Battery junction box was also replaced due to a flaky, non-serviceable, AC relay. (Probably what took out the compressor)

Did your cam phasers start to go bad and then you had them replaced? Or were you able to get your extended warranty to do (preventative maintenance) ? My truck is under an extended warranty 101k and no phaser issue “yet.” But I know it’s coming my way eventually. Seems everyone gets hit by the phaser laser.