TIL why my mechanic kept pushing synthetic oil on me
I used to think synthetic oil was a total scam. My buddy at the shop always said it was worth it, but I figured he just wanted to upsell me. Then last Saturday I overheard him explaining to another customer how conventional oil breaks down way faster in modern engines, especially the turbo ones. He mentioned that after 3,000 miles, conventional oil loses its viscosity and starts letting metal bits circulate. That got me thinking about my own car, a 2017 Honda Civic that I've been running on cheap oil for two years. I checked the service records and saw I had driven about 45,000 miles on conventional without any issues, but now I'm wondering if I've been slowly killing the engine. Has anyone else had a mechanic drop some truth on them like that? What did they say that actually made you switch?