I just finished a pine gazebo with blo, turpentine, and spar urethane.
I'm very happy with it so far. Grain certainly 'poped' out. It darkened slightly.
It should get a couple more coats especially on the end grain.
If I did it again I would use one of the many turpentine substitutes. The smell lingerers for days.
Some of the timbers were sanded with 80grit, others 120.
Applied with a small roller, then ragged off after 30 minutes or so.