Ever wonder why all the million-mile trucks used dino oil??

[Hohn]

I was thinking about this, and it made perfect sense to me.

1) Most folks who are putting on enough miles to hit the 1M mark are driving a LOT-- the engine is almost never turned off. Therefore...

2) The mileage that these engines are seeing is some of the easiest miles an engine will ever see-- constant oil temps, no cold starts, always operating temp, etc. Therefore...

3) A dino oil works perfectly well in an application where the engine is being babied. Some may argue that towing in hot climate is not babying the engine, but compared to constant cold starts and short trips, it's a VACATION! Therefore...

4) There's no cost incentive to run a synthetic, and those who rack up LOTS of miles actually have the LEAST need for a synthetic oil.


Anyway, it's somewhat ironic faster you accumulate miles, the more likely to last is the engine-- and the benefits of a synthetic may be insignificant.

Anyway, it just sorta hit me. Anyone agree?


jlh