Bob, I don't know about 7 but on my 8 the reserve tank was in the front bay on the passengers side. Most have been removed during conversion work it takes up to much space in the bays. FWIW mine was 100 gals took up 1/2 the bay good luck
If what tener says is fact then you may not be getting the mileage you think.>>>Dan
How are you measuring your distance travelled?How have you determined it is accurate?Which gallons are you using, US or imperial?Unless you do pretty much nothing but open highway driving, 6.4 MPG US seems a little high average for mixed driving for an 8V71 and auto drive train.6.4 MPG IMP, now, that sounds closer to a good number.happy coaching!buswarrior