[SentraSE-R]

You should seriously consider walking or bicycling any <5km distances. I bicycled 11km each way to work for ~10 years.

If you must drive, your typical drive sounds ideal for a pulse and glide drive to warm your engine up. It's late Winter here. I start my car, get it up to 20 mph (it's slightly uphill), and coast to the stop sign end of my block. I wait for traffic to clear, start my engine, make a left turn, accelerate to 20 mph, make a right turn at the next block, and coast the full block to the next stop sign. I bump start the engine as I reach the stop sign, make a left turn, accelerate to 5 mph to crest a small hill, and coast for the next two blocks to another stop sign.

By the time I've gone 3 km, I'm down to a 5L/100 km fuel consumption rate, and I can do a regular P&G routine from 25-50 kph without stop signs or traffic. By the time I've traveled 6 km, I've reached a 4.27L/100 km fuel consumption rate, and my engine has finally reached its 59 degree C warm-up temperature.