Combine the salt, vinegar, garlic, and pepper. Slowly whisk in the the chipotle olive oil. Place the steaks in a Zip-lock bag or in a single layer in a non-reactive pan or container. Pour the marinade over and massage it in to the steaks. Cover and allow to marinate refrigerated, for a minimum of 2 hours, or up to 6 hours.
Prepare a medium charcoal or gas grill, and cook to desired doneness. Allow to rest for 10 minutes before serving.