under different conditions.
A) City streets, limit 25/35/45
1. uphill - ??
2. slightly uphill - ??
3. flat - ??
4. slightly downhill - just don't get a ticket 
5. down hill - again no ticket.
B) Interstate, 55-75.
or would it be better to just use the grade as the chart? I assume that someone has run the test? And lets say the battery is 80% or better (or 60%+) and It's a downhill run of a mile - "N"? or "D"?
Tks