13-14 mpg mixed city/hwy
15 mpg
the Tahoe gets 15 mpg city, 19 mpg highway.
A 1999 Tahoe is probably around 12-15 city, 16-19 highway, if you use cruise control it'll help cause it maintains the RPMs and help raise the mpg
www.fueleconomy.gov The 99 Tahoe should get between 11 and 17 mpg. Depending on number of doors, 2 or 4 wheel drive, and if you have the diesel.
The EPA mileage estimate for the 2008 Chevrolet Tahoe is 14 mpg in the city, 19 mpg on the highway.
The EPA mileage estimate for the 2012 Chevrolet Tahoe is 15 mpg in the city, 21 mpg on the highway.
The EPA mileage estimate for the 2015 Chevrolet Tahoe is 16 mpg in the city, 23 mpg on the highway.
The EPA mileage estimate for the 2006 Chevrolet Tahoe is 14 mpg in the city, 19 mpg on the highway.
The EPA mileage estimate for the 2014 Chevrolet Tahoe is 15 mpg in the city, 21 mpg on the highway.
The EPA mileage estimate for the 2005 Chevrolet Tahoe is 14 mpg in the city, 19 mpg on the highway.
The EPA mileage estimate for the 2013 Chevrolet Tahoe is 15 mpg in the city, 21 mpg on the highway.
The EPA mileage estimate for the 2007 Chevrolet Tahoe is 14 mpg in the city, 19 mpg on the highway.