The transmission computer defaults to second gear when it detects a malfunction and sets a code. You need to have the TCM checked for codes to know possible causes.
It doesn't have one.
It doesn't have a drain plug. You have to remove the oil pan to drain.
No
yes.
A 1998 Dodge Intrepid has a 17 gallon gas tank capacity.
Regular.
5W30
Yes
yes
If same size, yes.
it is in the gas tank .
The Intrepid only uses distributorless engines. There is no distributor to have a cap.