1988 Dodge Grand Caravan
V6 3.8L Engine
Rinse Phase
1st Filter of Rinse phase
2nd Filter did not have anything to speak of in it
ST16 (e-core) filter
1500 miles on filter/oil
Mobil Clean 5000 oil
About 148K on Engine when filter changed
As you can imagine. Engine with more power. Smoother idle. etc.
Valve cover was removed pre clean phase, post clean phase, and post rinse phase with only slightly improved "clean look." Actually, I thought they were unremarkable myself. Varnish still there, but just lighter.
Also, there were several short runs of 2K OCI's due to oil turning black quickly prior to Auto-RX use. Purchase of minvan at 138K. Those oil filters were cut open also. But nada in them, just very dark.
V6 3.8L Engine
Rinse Phase
1st Filter of Rinse phase
2nd Filter did not have anything to speak of in it
ST16 (e-core) filter
1500 miles on filter/oil
Mobil Clean 5000 oil
About 148K on Engine when filter changed
As you can imagine. Engine with more power. Smoother idle. etc.
Valve cover was removed pre clean phase, post clean phase, and post rinse phase with only slightly improved "clean look." Actually, I thought they were unremarkable myself. Varnish still there, but just lighter.
Also, there were several short runs of 2K OCI's due to oil turning black quickly prior to Auto-RX use. Purchase of minvan at 138K. Those oil filters were cut open also. But nada in them, just very dark.