[FC] another spark plug question

[David C. Herrin III]

Bill, 
Our Spark Plug Chart is attached.
Perhaps a Quart of any ATF ( very high detergent ) into the engine oil
before the oil change or a Chemtool B12 flush procedure ( warning explosive
! ) David

Subject: [FC] another spark plug question

While putting off doing the ring job until summer, what is the suggested 
spark plug to either burn the little bit of oil or prevent (or slow)
fouling? 
Should I be running 20/50 oil? Any good oil additives to try?