GAS

1995 T4R V6 3.0

I WAS WONDERING WHAT KIND OF GAS MILEAGE I SHOULD BE GETTING ON A TANK OF GAS? LET ME KNOW WHAT YOU ARE GETTING SO I CAN COMPARE. ALSO WOULD A TUNE UP BE A GOOD IDEA I HAVE 57,OOO ON HER RIGHT NOW. I GOT IT 5 MONTHS AGO, SEEMS IN GREAT SHAPE BUT YOU NEVER KNOW.

THANKS,
BSR5M