Just a tad off topic, but back in my days as a young lineboy, when we had both 80/87 and 100/130 octane, I thought the 180 horsepower Lycoming O360 used the green 100/130. The Lycoming O540 at 235 horsepower used red 80/87.
Jay, are you sure your O360 will be happy on the 87 octane?
Scott