How hard is it to drop the oil pan and inspect the pick up screen and oil pan. I had a oil pressure light come on a Lexus by known sludge I replaced sender that looked like it was new already so I dropped pan and screen was partially blocked
Not impossible, if you pull the engine...
I like the @mad_hatter approach so far, will do the HDEO change at 3-5 k miles (when its a warm spell, oil change- only that, then HDEO and Rislone,
Then, depending on my mood, when I have my other car back, to the trav method, when I can let it sit for a bit, maybe when its a bit warmer too.
Based on the comments abut Trav's process, it seems that will dissolve any crap in the screen. I will post updates as I go
Thanks once again for all the thoughtful replies