I dropped my 2007 Heritage Softail Classic off at the HD dealership last weekend to have the 10K service, V&H exhaust, heavy breather, and a SE 255 cams installed along with a dyno tune. I told the dealership that I was going to change the fluids when I picked up the bike to save a little money. Planned on using Spectro synthetic oil, 6 speed transmission fluid and Spectro primary fluid. They called me today to see if I wanted to drop off the oil that I have been using in the bike since they had to drain it when the cams were changed. Since I did not have time to drive there today, I told them to use the Syn 3 since that is the only synthetic oil that they carry. Do you think that I should go ahead and dump the Syn 3 after I pick up the bike or run the bike for a while before changing it? I already have the Spectro waiting at the house.