Ohio → Indiana · Interstate 71 / Interstate 75
On heavy-rain or dense-fog days the Cincinnati, Ohio, to Indianapolis, Indiana, leg routinely demands well more than the 1h 47m estimated: Interstate 71 / Interstate 75 carries known hydroplaning hot spots and reduced-visibility corridors that justify dropping to 35 mph through a few short stretches. The outbound run covers 188 km (117 miles) over varied topography between Cincinnati (the Ohio River metropolis and historic Queen City of the Midwest) and Indianapolis (the capital of Indiana and home of the Indianapolis 500 motor race), demanding sharper attention on mountain descents and shoulder-less curves. Before pulling out, check brake-pad wear, tire tread depth, and washer-fluid level in the reservoir. Fuel spend holds near $15.73 for the 17.1 liters (4.5 gallons) consumed. Even in adverse conditions, the flat tariff of $0.43/km guarantees the standard outbound payout of $80.84 — log any incidental costs (extra toll, mandatory meal, emergency lodging) in a separate field on the Clara receipt.