Tanks typically use multi-fuel diesel engines or gasoline engines, with diesel being the more common choice due to its efficiency and fuel availability. Diesel engines provide better fuel economy and range, making them suitable for the heavy demands of armored warfare. Some modern tanks also utilize turbine engines, which offer high power-to-weight ratios and quick acceleration. Overall, the choice of engine depends on the tank's design requirements and operational environment.
Just one big one
Only wet sump engines have drain holes. Two strokes and four strokes with oil tanks do not, they are dry sump engines.
More powerful engines and guns created a need for larger sized tanks.
No, Russia was the only country to use diesel powered engines in tanks. Mainly because gasoline tend to freeze in the country's climate.
DD Sherman Tanks
Ford manufactured 1,690 M4A3 Sherman tanks during WW2. They also manufactured engines for other manufactures that were installed in tanks.
Straight/Inline engines, V type engines, Rotary engines and diesel engines
The allied commonly used Medium type tanks. They did use few Heavy Tier tanks but it was mainly the Soviets which produced a substantial amount of Heavy type tanks.
The allies fielded about 2,000 tanks in Vietnam: M48 Patton medium tanks, M551 Sheridan tanks, M41 Walker Bulldog light tanks, and about 54 Australian Centurion medium gun tanks. The NVA had about 3 regiments of armor (prior to 1972): T54 medium tanks (includes Chicom Type 59s) and PT76 amphibious light tanks (includes Type 63s).
Internal combustion.
To provide an accurate answer, I would need more context about which tanks you are referring to, such as military tanks, aquarium tanks, or another type. If you can specify the category or context, I can help you better.
according to Gates.com the answer is no