Guy at the auto parts store convinced me my oil filter was upside down

So I'm at O'Reilly's grabbing oil for my project car last Saturday, and this older gentleman walks up while I'm staring at the shelf. He points at the filter in my hand and goes 'you know that's a left-hand thread, right?' I just blinked at him... I've been changing oil for like 15 years. He doubled down for a solid 5 minutes about how my engine would seize if I didn't get the 'correct rotation.' I didn't argue, just nodded and walked away. Has anyone else run into these self-appointed garage gurus who are 100% confident but 100% wrong?

2 comments

2 Comments

cooper.viola24d ago

Read somewhere that some old filters were designed to spin on backwards on purpose just to mess with the new guys.

dylan41324d ago

Nah @cooper.viola, that sounds like an old mechanic's tall tale more than anything.