Thankyou for those kind words battleman13.
I'm in the middle of an experiment right now, I have noticed that in the past, whenever I used Techron fuel system cleaner, the
Copper level goes up. So before I change over to Regane, I am adding 5 bottles (not all at once) over the 10,000 mile OCI.
With 540,000 miles on it now and the next oil change due at 544,000 miles, I have an opportunity to go through more than
the usual one bottle of Techron.