I would drive 20-50 miles to reset the computer. Depends on what kind of emission test you are talking about. Do you mean the emission test for a state inspection?
i called the power chervolet and they said a combination of 150 highway and street miles. they told me to drive it for a bit and then let the car rest and then repeat it until 150 miles.
personally i wouldn't get it because a few weeks ago i bought a 2001 Chevy impala with only 113656 miles on it so for a 2002 dat it extremely 2 much miles on it
525 miles
They recommend 30,000 miles.
Every 10,000 miles
I would not buy one with over 150,000 miles on the odometer
17 city / 25 highway.....
On average I get around 25 miles per gallon 3.5 engine
50 miles
every 10,000 miles
100 Galons/ 5000 Miles
Probably every 5000 miles. Or 6 months.