I have 2010 Toyota that recommends 10k...

I do 7,500 instead with Mobile One and K&N

That is a "EXTRA COST" of three extra oil changes every 100.000 miles.

At $33 an oil change... that is $99 "wasted" every 100,000 miles.

I am at 173k miles and ZERO drama.

IMHO it has been worth the extra $172 I have "wasted". (FWIW, I caught a loose muffler bracket while I was under the car that I was able to fix before the muffler/Cat got torn off (I figure that alone covers the $173)).

If you are not actively engaging EVERY enemy you encounter... you are allowing another to fight for you... and that is cowardice... plain and simple.