Well...
I have always used the 3 pin resonators with built in capacitors and way back when I knew less than I do now.....

Making the transition from the Stamp, I was using a 20MHz with the 887, wanted to go with a little less power so I popped in a 4MHz and did not even think about changing the config. It worked fine.

Then stuff like this from the data sheets
When operating below 3V VDD, or when
using certain ceramic resonators at any
voltage, it may be necessary to use the
HS mode or switch to a crystal oscillator.