The best engine oil to use in a aircraft reciprocating engine is Phillips X-Country. It allows immediate oil lubrication without a warm-up.
Modified B-29 aircraft.
It is spread in the water by an aircraft in the space where the oil spilled.
which type of motor used in remote control airplane
jet and/or rocket propelled aircraft{jet/rocket}.
Type 52 stealth bomber
A340
The most commonly used type of Boeing aircraft is the Boeing-747 passenger jet. This airplane is used internationally to carry people all over the world.
aluminum
Many different engines are used in aircraft, including fighter bombers. You would need to name a specific aircraft to get the answer.
That can not be answered in less you divide aircraft in groups. An example question is: What is the most widely used type of aircraft for Private pilot training? That answer would be a Cessna 172 Skyhawk. To get a answer you have to be more specific.
Mineral oil