I need some help I have a 94 dodge caravan with a 3L engine question when you start up your van the check oil light is suppose to come on for a second or two. since my friend give me the van 6 years ago i never notice the check engine light coming on for a second or 2 when i started my van. i know for sure it not coming on now. can someone give me some advice why my check engine light might not be coming on specially now that i am burning oil it is important for me to get this light to work

thanks Michael