If you are geocoding with EPE I found a quirk. On address with interstate highways you can't use Interstate Highway or IH. I will bring back irrelevant. It's got to be I-30 as an example. This isn't true with GPS visualizer.

Google Earth

Google Earthis the Same. However, I still prefer EPE for all my geocoding.

I did test this and GE and EPE both accepted Interstate 30, but when I tried Interstate Highway 30, GE gave me E I-20, instead.

DriveSmart 65, NUVI2555LMT, (NUVI350 is Now Retired)

Didn't try

I didn't try just interstate thanks for the info.