A bit of Auto-RX with m1 synthetic

Messages
3
Location
Redmond, WA
I was using RLI Biosyn for a while, and then I ran out and needed to do an oil change (6 months+) maybe not needed - but wanted to. After letting it drain as thoroughly as possible, I put in M1 Synth with about 1/2 a bottle of ARX. I forgot that the recommendation is to put in a full bottle on Dino oil.. and a few ounces for maintenance aftewards. I stopped before hitting 1 bottle. Does it make a difference? I just did a purge of about 3 quarts and will send the oil for analysis... Still some ARX in there, but limited quantities.
 
Messages
2,500
Location
Dallas, Texas
Leave it in there for your normal Oil change interval if not a little longer. It will still do some cleaning, like a heavy maintenance dose. No reason to "purge" it. Is this on some kind of sludge machine? What kind of car/engine, what is the history?
 
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