In a jar, mix red wine vinegar, salad oil, sugar and Good Season Italian Dressing, let stand overnight.
Cook Mostaccioli according to package directions, drain.
Slice onion and peppers thinly.
Put links in bowl and cover with 1 cup boiling water, let stand 6 minutes, drain and slice (can also be diced).
In large bowl put drained pasta and other ingredients, toss lightly add dressing and toss again.Refrigerate until cool.The secrete is to MIX ALL INGREDIENTS WHILE STILL HOT.
Keyword pasta salad, Mostaccioli, cocktail sauage links