Well what should I put in my volv o I dint mind putting premium in my volvo but if it doesn't need it will I will put in regular it idles a little rough already so I dont want to put the wrong stuff in

 

I use Regular Gas in all my cars unless they "ping", and Volvos as a rule, don't... If you must, you may add some injector cleaner to help rough idle in the way of doing that but Premium Gas is not going to help, just lighten your wallet.