gas mileage

so i have a 1998 Mazda b2500 and every time i get gas i reset the trip meter and i have to fill up again at around 170ish miles. my math comes out to 10.5 miles per gallon. the downstream oxygen sensor was reading the same as the upstream. so i replaced the downstream and it was reading the same...

I have a 1999 ranger pickup that has poor fuel economy issues I've done everything I've studied on this forum and nothing works I'll list all the repairs and I've gotten a sad 16mpg. cleaning injectors (old) changing spark plugs (new, wires and plugs) changing maf sensor (new) changing o2...

Hey y'all -- so I recently bought 2000 Ford Ranger and to get it through inspection, I need to put new tires on it. I've already done most of the other work it needed myself to save cash, but other than buying used tires (which I'd rather avoid for fear that they'll give out at the worst time...

I was wondering what ford v6 has the best fuel economy to power ratio or which would be the best to swap into my 84 ranger which is lacking from power. I use this truck to go off road and as a daily commuter. If anyone knows which swap would give me good power and gas mileage please tell me and...

Truck is a 1993 Ranger Ext Cab 4.0 4WD 5spd with a 21 gallon tank,3 inch body lift running 235/75/15s,axle code is R6 IIRC. Just picked this truck about a month ago. When i purchased the truck it was getting 12mpg and had a HORRIBLE misfire..it literally ran like it was running on 5 cylinders...