I drive a company vehicle, 2013 F150 with Ecoboost V-6. Had the truck since 30k miles and no service/repair work has been done since we've had it other than oil changes, air filter and tires/brakes. Truck still runs great but has developed an occasional (sporadic) slightly rough idle when you come to a stop. After idling 30-40 seconds it smooths out. I'm sure it needs spark plugs, probably fuel filter and I'm guessing transmission service. No owners manual in truck so I can't easily see what FoMoCo's maintenance suggestions are. I hate just pulling up to the dealership and being subjected to a service writer's "sales pitch". I'm looking for the "absolutely need to do" suggestions as well as the "don't fall for that crap" things to look out for. Thanks in advance for any help!