The manufacturer says to change timing belt at 60,000 miles. This is an interference type engine so if it breaks it can cause major engine damage. My 2005 Aveo has 110,000 miles on it and I still haven't changed it, mainly because Pep Boys wants $700.00 to do it. The belt on my sister's Aveo broke before 60,000 miles and it took over $1000.00 to fix it. My answer would be definitely replace it before 60,000 miles if you can afford it.
75,000
90,000 miles
Replace the timing belt every 100,000 miles.
The Chevrolet Astro has a chain not a belt.
The EPA mileage estimate for the 2005 Chevrolet Equinox is 17 mpg in the city, 23 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 2005 Chevrolet Corvette is 16 mpg in the city, 26 mpg on the highway.
The EPA mileage estimate for the 2005 Chevrolet Impala is 19 mpg in the city, 29 mpg on the highway.
The EPA mileage estimate for the 2005 Chevrolet Colorado is 18 mpg in the city, 24 mpg on the highway.
The EPA mileage estimate for the 2005 Chevrolet Express is 13 mpg in the city, 18 mpg on the highway.
The EPA mileage estimate for the 2005 Chevrolet Malibu is 21 mpg in the city, 32 mpg on the highway.
The EPA mileage estimate for the 2005 Chevrolet Suburban is 14 mpg in the city, 18 mpg on the highway.