-pkh-,
I found this page that will help describe [link=http://www.pgbrands.com/pages/cleaners/foodservice/kitchen/product.jhtml?id=prod10025]Dawn Power Dissolver.[/link]

Here's a snippet from the page:
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No Scrubbing Required! Ideal for use on baked and burned on grease. Just pretreat your toughest pots and pans and wipe the grease away. Effective for pots, pans, dishes, stoves, ovens, grills, and RC airplane engines.
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OK, I added that last part...

Picture of Dawn bottles shown below.



CGRetired,
I think it was a 100:1 ratio of beer to Dawn, but I don't think any of the beer made it to the muffler...