Squeaking Trailer Bathroom Door Wants WD-40

The bathroom door in my travel trailer was waking others up at night it had such an ear piercing screech to it. So I used WD-40 MULTI-USE PRODUCT lightly on all of the bathroom door hinges and immediately the horrible screech was gone. A wipe with an absorbent rag and the job was quickly finished. Now we all sleep peacefully in the trailer. Thanks WD-40!