10W30 oil is the recommended type unless you operate in some sort of extreme (hot or cold) environment. The oil cap will read 5w30
5w30
Use 5W30.
no a 2001 dodge neon motor will not work in a 2000 neon
No
No.No.
DOT 3
5w30
Regular 87 octane.
There are similar, but not the same.
If same size, yesIf same size, yes
5w20 is the recommended weight.
500 lbs