When I last refreshed the peppermint oil I probably used too much. Even so, I barely smelled it for a day or two, then it was gone.
If you can't smell it, it's probably not strong enough to act as a rodent deterrent. There is very little scientific evidence peppermint oil even works. Physical controls, bait, and traps are really the only proven and effective way of dealing with mice.
This is to prevent rodents from entering the cabin, not to prevent from getting under the hood. I have not yet done this to my MME but have to two other cars, i.e. Prius and Fusion. Assuming same process with MME. First, remove wiper blade assembly. May need a special puller tool to safely remove - or a local auto shop may have the tool. Second, remove any other coverings/cowling to get to the air intake port. Third, cut 1/4" or less wire mesh fabric to cover the air intake port. Do not use window screen because it is so fine it could clog. Cut wide enough to attach to the metal wall using sheet metal screws. Fourth, mark drill points with the mesh in place then remove the mesh and drill pilot holes appropriate for the sheet metal screws. Fifth, hold mesh in place while screwing in sheet metal screws. Note: Allow sufficient depth to allow recirculation door to open and close. Don't want to prevent mice but not be able to prevent smoke/dust.
Thanks! I'm more than willing and able to tear into any car haha. I'll look into a tool to remove the wiper arm assy. I love buying specialized tools I will only use once.This is to prevent rodents from entering the cabin, not to prevent from getting under the hood. I have not yet done this to my MME but have to two other cars, i.e. Prius and Fusion. Assuming same process with MME. First, remove wiper blade assembly. May need a special puller tool to safely remove - or a local auto shop may have the tool. Second, remove any other coverings/cowling to get to the air intake port. Third, cut 1/4" or less wire mesh fabric to cover the air intake port. Do not use window screen because it is so fine it could clog. Cut wide enough to attach to the metal wall using sheet metal screws. Fourth, mark drill points with the mesh in place then remove the mesh and drill pilot holes appropriate for the sheet metal screws. Fifth, hold mesh in place while screwing in sheet metal screws. Note: Allow sufficient depth to allow recirculation door to open and close. Don't want to prevent mice but not be able to prevent smoke/dust.
This process may seem intimidating if you are not mechanically inclined. Could always pay a local auto shop to do this.
