I still run my pickup to the dealer every 3000 miles for an oil change. They check everything else over in addition to the oil change. They catch things like leaky seals and CV joints and other underneath stuff that I no longer want to be paying attention to. Worth it for me. Also even full synth breaks down and will burn just as good as cheap oil on an older motor.
don't get me wrong here folks, I am a guy that maybe changes oil TOO often,(been known to change oil on ATV several times a summer bases on use, not hours or miles or age), have always felt oil and grease was cheaper than motor drive train work!
, so, I wasn't suggestion I or anyone else NOT change it or the likes
I was just saying
I do think many oil company's and marketing have lad many to feel they HAVE to change oil when maybe they really don't
I have a Ram with a diesel in it, and it requires oil changed every 6 months or 15,000 miles, to NOT void the warranty on it
even if IT sits ALL yr, it still requires oil changing
which IMO< is BS, but to play the game if you wish, its part of the deal!
I cannot see how oil will go bad sitting in a truck motor past 6 months, or even when oil /motor only has a few miles or hours of use on it
But again, that's what the motor requirement is on it to KEEP warranty intact, and at the price of new motors and who know's what that warranty might be needed for, its a smaller price to pay I guess,
I however do think it might be over kill! pending use of motor!
I have managed farms where farmers have NOT changed oil for YRS and I mean 10-20+ yrs on some things and they ran flawlessly
they are braver than I am to risk things, but when you DON"T have the funding, you cut corners and some times you win, some times you get burned!