John501
Member
- Joined
- Jul 16, 2020
- Messages
- 81
- Reaction score
- 5
- Points
- 8
- Location
- Kansas
- Vehicle Year
- 1990
- Make / Model
- Ford ranger
- Engine Type
- 2.3 (4 Cylinder)
- Transmission
- Manual
- 2WD / 4WD
- 2WD
- Tire Size
- 235/75r15
Hey everyone, I have a 1990 ranger 2.3 lima, 5 speed manual around 160K miles. It has the 3.45 rear end and I upgraded to 15 inch rims, with 235/75r15 tires i change the speedo gear to get the correct speed. This winter I've noticed a slow decline in my fuel economy, my last fill up was 14 mpg which is very low for a 4 banger engine. I have new spark plugs and wires, they are the standard copper plugs, and a new denso o2 sensor. I drive like a grandpa, if the truck sees above 2500 then I'm in a hurry. The driving I do is 70% highway/ 30% city, and I usually shift up at 1600-1800 rpm, since I have bigger tires now my rpm at 55mph is 1550ish rpm, and 60mph is a little below 2000 rpm. For the highway driving most of it is at 55mph, and some at 65mph. The city driving is at 45mph and I do shift into 5th but it drops the rpms to 1300. What is effecting my Gas mileage?? My 4.0 explorer 4x4 can get 19mpg driving the same route. I got this truck hoping for mid 20s gas mileage.