I finally got some garage time and pulled a valve cover. I did a 3000 mile clean phase, this is about 2000 miles into the rinse.
As you can see there is still a lot of cleaning to go, but I would say the Auto RX cleaned at least 1/3 the sludge. It seams to have worked best on the lower portion of the head where there is the most oil flow. In the last pic, you can actually see some areas of clean bare metal.
All and all, I am happy with the results.
At this point, I am going to do some 3000 mile runs with Valvoline synthetic, I may do another Auto RX run in the summer.
As you can see there is still a lot of cleaning to go, but I would say the Auto RX cleaned at least 1/3 the sludge. It seams to have worked best on the lower portion of the head where there is the most oil flow. In the last pic, you can actually see some areas of clean bare metal.
All and all, I am happy with the results.
At this point, I am going to do some 3000 mile runs with Valvoline synthetic, I may do another Auto RX run in the summer.
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