Going down to Vancouver to pick up a friend and eventually drag her back to Montreal. Thing is, the total distance is a few clicks shy of 10k. I'm going to change my oil in the next week or so and I wanted to know if it would be safe to make that trip on the same oil. I'm going to put Castrol Edge w/Syntec and a Fram filter. I usually do my changes at 5,000km. What do you guys think?