ok this all started when i thought my gas tank was a 22 gal, and the catalog said 17. i punched in my vin but it only decodes the vin, no RPO's. so i looked at the cowl tag. the only RPO it has is "AM6" split bench w/ armrest. but my car is a conquista. and i cant find the d91 or whatever it is. i read that the didnt make the RPO tags until 84 or something, but i want to know what i have, so if anyone could tell me how to go about this it would help out alot.

Drive your Elky until the gas gauge reads real close to empty and then go fill it up. If it takes more than 17 gallons, you have a 22 gallon tank.

yeah, i COULD do that, but it is no longer about the tank, it has become a quest! i must find them!! :evil: no but seriously, i will do that, i just want to know where those things are. thanks alot

I've found two different broadcast sheets for my '82 GM car and neither has RPO-type codes on them.