A few people have been scammed on the site, Only use paypal to pay for items for sale by other members. If they will not use paypal, its likely a scam NEVER SEND E-TRANSFERS OF ANY KIND.
My 2012 doesn't have an instant indicator but I"ve kept track of every fill and my lifetime average in 7000 miles is 84 mpg. ( I never, ever use ethanol in any vehicle )