08. Fuel Tank

fuel = input()
liter = float(input())

if fuel == "Diesel" or fuel == "Gasoline" or fuel == "Gas":
    if liter >= 25:
        print(f'You have enough {fuel.lower()}.')
    else:
        print(f'Fill your tank with {fuel.lower()}!')
else:
    print('Invalid fuel!')


Или с тернарен оператор:

fuel = input().lower()
liter = float(input())

if fuel in ("diesel", "gasoline", "gas"):
    print(f'You have enough {fuel}.' if liter >= 25 else f'Fill your tank with {fuel}!')
else:
    print('Invalid fuel!')


Или тарикатската:)

fuel = input().lower()

print((f'You have enough {fuel}.' if float(input()) >= 25 else f'Fill your tank with {fuel}!')
      if fuel in ("diesel", "gasoline", "gas") else 'Invalid fuel!')