Change it regularly also.
Yes, common sense,
BUT we all know about common sense these days LOL
I did a tune up, oil change etc on a 06 few weeks back
Asked when fluids were all changed
This guy bought it new, 148,000 miles
original plugs ( burnt up like Cousin Mike after New Years )
Oil changehad been every 20,000 miles ( sad )
transmission, diffs, transfer case never had been touched
Customer thought everything was life time