Years ago, we had an oil change and a couple of other maintenance items done at Truck Maintenance Solutions (TMS Truck & Bus). They were recommended to us by two locals we met while on an extended stay in the Denver area.
They seemed like real nice folks and have a lot of good online reviews. I believed they've moved since we've been there. It seemed that they were in Brighton but I believe moved about 15 miles north to a very rural area. The work on a lot of motorhomes along with buses and trucks. From my recollection, their prices seemed very reasonable and we had no issues. I do remember them mentioning that they routinely do FCCC scheduled maintenance services for those who ask.
Truck Maintenance Solutions, Inc. - RV Services
TMS Facebook
20476 CR 29
Platteville, CO
(303) 288-0910