Usually, the egg will be implanted between 6 to 12 days of egg retrieval. After five days of embryo transfer, the egg reaches blastocyst stage. For accuracy, you need to county the day of retrieval as day 0.
A motor car engine is an Internal Combustion Engine (ICE). Energy is created by burning either diesel or petrol in a combustion chamber. In such an engine, the energy is transferred from the pistons moving up and down at high speeds. This up-down motion is converted to a rotary motion through the crankshaft and axle.
Ethanol tends to be very corrosive because it can easily absorb water and dirt and without the proper filtration system ethanol can soon cause the corrosion inside the engine block. Specialized gas stations that offer E85 ethanol are still pretty rare so many drivers would have to drive further distances to find them.