In a large measuring cup or another bowll, whisk together oil, eggs, water (or buttermilk), vanilla and fig preserves. Add liquid mixture to flour mixture and stir until smooth, then stir in the walnuts. Pour into the loaf pan and bake at 325 for about 1 hour or until loaf tests done. Let cool in pan for about 20 minutes, then carefully loosen with a knife. Don't remove from pan yet. Let cool completely, then turn from pan.