A while back I got into an argument with some friends about whether I am covered by my insurance while driving a rental car. They said I’m not. So I called up my insurance company Liberty Mutual and was told that my coverage holds when I drive a rental. Also last week I needed to borrow a friend’s car. In this case, according to Liberty Mutual, if the friend gave me permission to drive his/her car, the friend’s insurance is what covers me.
Always verify this with your insurance company first! Don’t go blaming me if this doesn’t apply to you 
