bought 15 40 part sythetic high milage oil

[maddlibb]

Just hit 100 miles on my scoot, was going to do oil change from Dino break in oil to synthetic, I noticed I bought high mileage part synthetic, 15 40, is this still ok to use or should I go back and get the 15 40 full sythetic?

Sorry Im a noob and asking a ton of questions, you guys rock!