Hello,
I have 11,000 miles since my last oil service. It has been 1 year. I plan in January doing major service on my series 60. Replacing the cam plate seal and overhead valve adjustments.

Between now and then I will be putting 4500 miles on the coach. Should I get a service before the next two trips? If I do I will be having to change oil and service in January.

Should I go ahead and service coach? Or will it be ok to wait until 15 k miles?

Thanks