Engine Oil
Anyone know what kind of oil is put into a 2014 Coachmen Mirada. I do not know if it is regular oil or synthetic. Does it matter if I switch it to regular oil. Is there a place in the coach that say...
Forum Discussion
Chopperbob wrote:
The 5-20 is used for the cam timeing not the epa.
Stay with 5-20. Why Take à chance?
Bob
I'm not aware that a V10 has variable cam timing---------at least not in the 2 valve engines. And in variable cam engines, it is pressure (controlled by electronic valves), not viscosity, that changes the timing.
Variable Camshaft Timing (VCT) is an automobile variable valve timing technology developed by Ford. It allows for more optimum engine performance, reduced emissions, and increased fuel efficiency compared to engines with fixed camshafts. It uses electronically controlled hydraulic valves that direct high pressure engine oil into the camshaft phaser cavity. These oil control solenoids are bolted into the cylinder heads towards the front of the engine near the camshaft phasers. The powertrain control module (PCM) transmits a signal to the solenoids to move a valve spool that regulates the flow of oil to the phaser cavity. The phaser cavity changes the valve timing by rotating the camshaft slightly from its initial orientation, which results in the camshaft timing being advanced or retarded. The PCM adjusts the camshaft timing depending on factors such as engine load and RPM.
And again, a 5w oil is far thicker at startup than a 30 or 40 weight oil is at operating temp.
