Originally Posted by demarpaint
Originally Posted by burla
When someone uses conventional oil and gets high mileage did they do so because of the oil or despite using that oil? Conventional have less tbn and they are not as clean. Yeah you could never prove anything, but is using an oil with less starting tbn and a less clean base oil a smart lubrication strategy? The margin for error is less with conventional imo, there are always that point in peoples lives where they get busy and forget the oci, it happens to the best of us.
It depends, some people live in areas where driving conditions are conducive to longer engine life no matter what oil they use. Live in an area of the country where you can commute 20 miles in 25-30 minutes, vs. 20 miles in 60-90 minutes and things can change in a big way. Heck you might even get away with following blanket statements regarding synthetic oils can go 'x' amount of miles with ease, and dino can go 'y' amount of miles with ease.
Honestly, most modern name brand "conventionals" are blends with decent add packs to start with. Certainly no worse than bottom rung synthetics.
Going 7500 on an oci with something like pyb because you forgot one time (or even a couple) isn't going to be the death of your vehicle.
A lot of you forget that a lot of the driving public unintentionally goes longer oci's than the majority of folks on this board (even those that think they are "pushing" their synthetic at 10k). And yet vehicles are lasting even LONGER than ever.
Simple fact is that this board argues about minutia that doesn't matter long term.
It's fun though.