Grilled Pork Tenderloin

Description
This is so easy that I thought it just can't be that good and almost didn't try it but it is excellent. I got the recipe from another group and it was posted by Buttercup.
 * Contributed by Catsrecipes Y-Group
 * 4 to 6 servings

Ingredients

 * 2 pork tenderloins (2 pounds each)
 * 1 x 8 ounce bottle zesty Italian salad dressing

Directions

 * 1) In large covered bowl pour salad dressing over tenderloins and marinate for 8 to 12 hours in refrigerator, turning often.
 * 2) Remove tenderloins from dressing and place on grill.
 * 3) Cook until meat thermometer reaches 160 to 170°F (about 10 minutes on each side).
 * 4) Slice and serve.