There are a ton of things it could be. My suggestion find a local mechanic that wont charge $65 to hook your truck to a monitor. I have a 98 Tahoe and had it done by my local mechanic for $20.00.
Good luck.
The fuel capacity of a 1998 Chevrolet Tahoe is 30 gallons. The mileage of the Tahoe is 15 miles per gallon in the city. In the country, the vehicle gets 19 miles per gallon.
I have a 1997 chevy tahoe, and i get about 10 miles to the gallon usually
A car that has great gas mileage is the Toyota Prius. It is said to get over 45 highways miles to the gallon and over 40 miles to the gallon in city miles.
a 1997 Chevy Tahoe gets around 16 miles to the gallon highway and about 10 miles to the gallon around town that's about the best you get out of them.
Depending on the year and engine the mileage ratings can vary. The 2002 Tahoe gets from 14-15 mpg city and 17-19 mpg highway depending on the package.
40 miles
443 miles
Some Hybrid cars have great gas mileage. They have a wide range of vehicles that range from gas mileage of 39 to 48 miles per gallon. It all depends on what kind of car that you are looking for and that should help determine the miles per gallon.
The gas mileage for a 1987 Ford Crown Victoria is 17 miles per gallon on the highway and 11 miles per gallon in the city. The combined mileage is 13 miles per gallon.
765 miles
The gas mileage of a BMW 325i will vary based on driving conditions. The estimated highway gas mileage is 29 miles per gallon. The estimated city gas mileage is 20 miles per gallon.
What's the mpg on a 2011 Chevy Tahoe city and highway