1 (3 lb.) chuck roast
1/3 c. oil
3 tbsp. soy sauce
1 tbsp. Worcestershire sauce
2 tbsp. wine vinegar
1 1/2 tbsp. lemon juice
1 1/2 tsp. dry mustard
3/4 tsp. pepper
1/2 tsp. salt
1/2 tsp. parsley flakes

Combine all ingredients for marinade. Marinate meat overnight (or at least 8 hours) in the refrigerator. Turn several times. Cook roast on flame using medium to high flame on the grill. Cook 20 minutes on each side or to desired degree of doneness.