Consistent gas mileage isn't a strong point on my 97 3.4 auto 4x4 either. Some times I get down to your range.

What I have gradually observed is the gas mileage is hyper sensitive to city type driving and brisk acceleration.

It takes very little load in the bed or a trailer to drop gas mileage as well.


'97 T-100 SR5
'86 Toyota's, the variety pack (all gone)