Depending on where you live depends on what oil you should use. If you live somewhere that there are mild summers like up north then 5w30 would be fine if you live somewhere that the summers are hot you would want to use a 10w30.
20w50
Low viscosity oil flows easier when it is cold but become thinner when it is hot.
Yes, used motor oil contains toxins such as benzene, lead, arsenic, zinc, and cadmium. Anyone should handle used motor oil with care. A pregnant woman should not get near used motor oil.
Use 10w30 in the Winter and 20w50 in the Summer.
Take it to a place that accepts used motor oil. Almost anyplace that sells oil will accept it for recycling. Used motor oil is very toxic, and is damaging to the environment and our water supply, so do not just pour it out. Take your used motor oil to autozone, advanceautoparts, any gas station in the US
Type B
Used motor oil contains MTBE among other contaminates, which can cause cancer. No one especially a pregnant woman should ever come in contact with used motor oil.
5w30
I used Valvoline VV155 MaxLife SAE 5w30 Motor Oil in my 1990 acura legend
Yes
Should probably use 10 w 30 or 30 w.
Depends on the year which you fail to list.