Rich,
You can use Neutra as a flush, but recommend against it as a maintenance fluid. And never mix Neutra, Lube Control, or Auto-Rx.
You didn't say what kind of oil or viscosity you were using with #132. Go lightly with the #132 (use sparingly) and only use it only for light 30 weights.
Follow directions from the Auto-Rx web site as to maintainance dose.
Addendum: I have mixed 132 with Franks Auto-RX and they mix well.
If I were going to just do internal engine cleaning, I would NOT use 132 with Auto-RX, so as not place any impediments to the esters in ARX. The base fluid of 132 is also an ester, a very thick ester.
Here is my recommendation (based on my opinion, not testing): Use the 132 for normal driving (and sparingly). Before every 3rd oil change, stop the 132 and add your maintenance dose of ARX.
[ June 02, 2003, 02:18 PM: Message edited by: MolaKule ]