3000 miles is nice but I don't obsess over it. The bikers I've talked with have opined that with the Morgan setup having 50% more oil than any motorcycle out there will considerably increase the mileage you get out of the oil before it breaks down. We are running 6 quarts versus the 4 usually supplied. For synthetics the recommendation is to change it at 3,500 to 5,000 mile intervals with a stock bike running 4 quarts. I think we have a considerable amount of leeway with the M3W.
At one point due to scheduling and lack of time I ran mine up to 4500 miles before a change and it was only mildly darker than the usual. The usual looking like I just put it in.
Couldn't agree more!
Maybe if regularly sitting in traffic in hot weather and cooking the oil that way then the official intervals are about right otherwise I think they are overkill.
