original_query: What was the fuel efficiency of the 2.7 L engine in the highway cycle for 4WD Tacomas?
query: What was the highway fuel efficiency of the 2.7L engine in 4WD first-generation Toyota Tacomas?
answer: The provided text does not give a precise fuel efficiency number for the 2.7L 4WD Tacoma in highway cycles.  It only states that the 2.7L engine gave  (highway cycle, 4WD). The missing value needs to be found elsewhere.