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In reply to the discussion: I am going to loss my apartment over a stain! [View all]Lone_Star_Dem
(28,158 posts)The only problem you may have with the dawn is a detergent residue which may be tacky and catch dirt after you think it's all gone.
I'd try the vinegar first. Mix it 1:4 with water and test a small section of carpet under a bed or in a closet. After its dry see how it looks. I don't expect you'll have any problems.
If the vinegar won't remove the stain try the Dawn and then rinse with a vinegar water, same ratio as above. Use as little of the detergent in water as you can to remove the stain. It is difficult to get it all out of the carpet without some type of extractor.
You could also use a tiny bit of laundry det instead of the Dawn, but on a cola stain I don't think that's necessary. They're not hard to remove unless it was a bright color.
Good luck, and you can PM me if you need help. I have almost 20 years of experience getting stains out of carpets on a budget.