Another small thing that I've learned about riding on wet pavement. The roadway is, or should be, sloped toward the curb side, so that water will run off. On a two lane I try to ride in the center most lane with my tires where a cars left side tires run. That is best chance of missing most of the oil. On a one lane I use the same method. Doesn't seem like that would help all that much, but anything that might help is worth the effort. This coming from 63 years of riding experience. Glad to hear that you and your scoot weren't hurt any worse.