Well I broke 25000 miles and needed an oil change so I decided run down to Walmart and try out the Rotella 5w 40w synthetic. Seeing the price was about double that of 10w 40w dyno, I hesitated thinking maybe this was like the snake oil sold by Dr. Feelgood in the 1800s. After 150 miles the engine sounds smoother and quieter. My wife also mentioned that the truck seems quieter. With an 80 gal aux tank I don't fill up vary often but the over head is showing about 2 miles better then normal.
Is it just me or do you fellows using synthetic find that your washpan full of ball bearings under the hood has quieted down.
Is it just me or do you fellows using synthetic find that your washpan full of ball bearings under the hood has quieted down.