Originally Posted By: Greasymechtech
Most assume automotive engineers are so great. I don't.
I guess that ToadU has never owned a vehicle that had issues, like major oil consumption, sludging, DI fuel dilution, or other defect that somehow was overlooked by engineers.
Pretty sad that the oil sheared deeply into 20 grade territory. I'd expect a better lowest bid oil from Toyota for factory fill. If it calls for 5w30 conventional, why give it an oil that surrenders so quickly into a 20 grade? Or, maybe you should run that factory fill conventional for 7500 miles to give it time to oxidize and sludge back up to a 30 grade?
Smart move to rinse out the manufacturing debris. Tacoma is a great vehicle and hope that it serves you well.
You people need to remember that auto companies are not run by engineers. They are run by accountants who are watching the bottom dollar. My bet is the cheapest lowest bid oil is put in at the factory. Look at all the recalls and problems the car makers have due to cheaper parts, designs and trying to save a buck or cut corners. It almost killed the US car cos. and they are still doing it.