Okay, MPGs on the 5th gen 4Runner has been discussed plenty of times here.

Just wanted to put together what I think contributes to your average MPG’s


Here is what contributes to getting an average of 13MPGs to 16MPGs :

City driving, traffic - stop and go.
Lift with Larger tires - 275’s, 285’s and up, especially with M/T tires (Tires are heavy)
Low tire air pressure
Armor, roof racks and loads of gear inside and out, more weight equals less MPGs
Higher speeds with higher RPMs, Around 70mph to 80mph (or higher)
Long idling or long warms ups.
Bad driving habits, such as rabbit starts, your lead foot, full throttle acceleration etc.
Towing a trailer or turtleback
Poor tune up or maintenance. Dirty air filter, oils and fluids need changing. Bad spark plugs, etc.
Air conditioner frequently on.


And here is what contributes to getting an average of 17MPGs to 22MPGs

Mostly highway cruising 65mph and under
Feather feet. Gentle driving techniques. Light on the throttle.
Hypermiling
Quality 265’s A/T tires or road tires with a bit higher air pressure.
Less gear installed or loaded in and out of your rig.
Less armor or none at all.
Tune up and maintenance is has been up to date.
AC is barely used



I’m sure that weather, altitude, octane rating, tuning, engine and exhaust mods will make MPGs +/- up or down.

With that said, I am currently in the 14.5-15MPG range
I have 285 M/Ts with a lift. Mixed city/hwy driving.
AC is on most of the time. It gets hot and muggy in the vehicle.
Highway speeds in Northern California when traffic is smooth drivers usually go 70-75mph cruising. 80-85+mph you’re in the fast lane.
If you are going below 70mph, you need to be in the slow lane with slow driving vehicles and trucks towing trailers and such. People in California drive at a fast pace.



Feel free to post if I am missing something.