I switched to synthetic a while back. Recently had someone do some work on the X and they put in conventional. I noticed that the truck ran pretty rough. Put synthetic back in and it is running nice and smooth with less engine vibration and noise.
Anyone else notice that synthetic helps keep the truck running smoother?
Could this be a sign of something bad happening internally? X has 96,600 miles.
-Chris
Anyone else notice that synthetic helps keep the truck running smoother?
Could this be a sign of something bad happening internally? X has 96,600 miles.
-Chris