one pass for every pleat! that would definately be overoiling.
The best way to figure it out is just do it. I put the filter on the end of a post in my yard, and lightly sprayed the oil on it. Let it sit like 10-15 minutes, came back and felt the filter, there was barely any on there and it was still white from when i just cleaned it the day before and let dry, sprayed it again with the oil, covered a little more this time, let it sit again, came back and it was mostly pink with a few whiter spots. hit those spots real lightly let it sit for another 15 minutes, wiped the oil overspray off the rubber at the bottom with a rag, put it on the truck, and waited til the next day to drive it or start it up.