A bit of Auto-RX with m1 synthetic

[mikekellog911]

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.

 

[SuperDave456]

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?

 

[mikekellog911]

That's what I thought, and their website says it's fine.
No sludge machine.

 

[Pablo]

Should not be a problem at all.