Congratulations on checking your oil often enough.
1 quart every 2000 miles is nothing to worry about, a lot of new cars use more than that.
A 13 year old car that only burns 1 quart every 2000 miles is something a lot of people would be bragging about.
Keep doing what ever it is you’re doing and you have a good chance of getting another 13 years out of this car.