I recommend adding it to the oil tank.
front of engine block idiot
I question your cc's, but a 30W of SG or greater rating should suffice.
The oil drain plug is located on the bottom of the engine underneath the edger. It takes 20 ounces of SAE30 weight oil. I recommend you use synthetic oil in any air cooled engine. Change the oil every 25 hours. Click the link to download an owners manual.
Just add enough oil to reach the full mark on the dipstick.
The total capacity is 20 ounces but not all the oil will be removed when you drain it. Drain the oil and then add 15 ounces. Check the level and add as necessary to reach the full mark. Do not overfill.
If you have to add oil to the fuel, it is a 2-cycle engine. If you have to add oil through a filler spout into the crankcase, it is a 4-cycle engine.
What is the cross reference for Craftsman 24606 oil filter to Fram
The Craftsman 6.0 Mower takes an oil that is at least 30 wt. A blended oil that is 10-30 is okay to use also.
"6.6 craftsman " is insufficient info. -If you expect a sensible answer, please describe it fully.
In all Craftsman chain saws going back to at least 1990, the oil/gas ratio is 40/1.
2 Cycle engine oil.
SAE 10w30 synthetic oil.