I'd be more interested in what Ford says about the OCI than what the dealership says.
"Intelligent Oil-Life Monitor™ (Ford's iOLM)
Your vehicle is equipped with an Intelligent Oil-Life Monitor that determines when you should change the engine oil based on how your vehicle is used. By using several important factors in its calculations, the monitor helps reduce the cost of owning your vehicle and reduces environmental waste at the same time.
This means you do not have to remember to change the oil on a mileage-based schedule
. Your vehicle lets you know when an oil change is due
by displaying a message in the information display.
The following table provides examples of vehicle use and its impact on oil change intervals. It is a guideline only. Actual oil change intervals depend on several factors and generally decrease with severity of use."http://www.fordservicecontent.com/Ford_C...;VIN=&div=f
Also, while Motorcraft oil is OK, you can do better. Recommend any full syn 0w20 oil meeting dexos1 Gen2 since it's a higher performance standard oil. Mobil1 Extended Performance 0w20 is a good one, for example, since it has a significant percentage of PAO too. from walmart or amazon or ebay in 5-quart jugs...
You don't 'have to' change out the oil at 1,000 miles, but I'd do it to get the new-engine extra wear metals out sooner, and then go by the iOLM after that.
Oil filter: Motorcraft oil filters have shown a propensity to get holes in them (made by Purolator is the problem....), so go with the best available: Fram Ultra XG3614 (walmart or amazon) cuz it does filter better than others (4548-12) and is wire-backed.
Magnetic oil drain plug: Dimple or GoldPlug brands are strong magnets and will catch some Fe fuzz.
Congrats on the Focus! I've got a 2016 hatchback Focus, but it has no engine, just 1 electric motor. The suspension and steering performance on these things is amazing (Control Blade rear suspension; all is tight). And, you got one of the very last ones they will make in the U.S., since production is shifting to China from now on.... Sad.
You'll get great MPG's. fuelly.com reports a fleet average of about 34 MPG in mixed (of course, since its fleet average) driving.http://www.fuelly.com/car/ford/focus?engineconfig_id=105&bodytype_id=&submodel_id=
If you hear others saying the Focus is one to avoid, they are probably talking about the infamous dual-clutch automated manual in other Focuses, not yours. That thing was a disaster for Ford.