Collect enough used motor oil to fill at least two feet of a 55-gallon barrel. Pour the oil into the barrel and keep it covered until you are ready to treat the fence posts.
Place the fence posts into the barrel. The 55-gallon drum is able to accommodate several posts at the same time. Allow the posts to soak for at least one week to give the oil time to penetrate the wood.
Remove the fence posts from the barrel and insert a new batch. Repeat the process until all of the fence posts are treated and ready to be inserted into the ground.
Things You Will Need
- 55-gallon barrel
- Used motor oil
- You can collect used motor oil by asking your local garage or oil change center. Alternatively, you can also ask people in your neighborhood who perform their own oil changes for their used motor oil.