300 te- 1989.
While under the car yesterday, I noticed a slight orange-ing of the metal around the jack hole...I did not pull out the plug. Is there any "preventive" maintenece for this area or the entire rocker panel? On an older Volvo I had, I filled the rocker with 80wt oil, plugged the drains and let it sit there for a few days...I don't know if it did anything, but I felt better about it.
So, what are the ways to prevent rust?