I used this: Amazon.com : Coleman 32 Oz. Kerosene : Lamp Oil : Sports & OutdoorsOP, there are two types of Kerosene's and they are distinguished by sulfur content. It sounds like you used type two which is specific for burning in heaters and lamps used outdoors. You want to use type 1 with the lower sulfur content. You can by Sunnyside K1 at Walmart for about $12 a gallon. I personally use WD-40 to clean my chains with a grunge brush. Motul and Honda chain lube afterwards. I think most folks overthink this **** really.
OK, you got me there. Sure, Motul has toxic ingredients. But when I use it (and I have for the last 7 years, with the exception of the one use of kerosene), not only does the smell not permeate my bike, garage and clothing, but my eyes don't water, either. And that last one is a good "tell" for the presence of highly toxic fumes.Just to stoke the fire a bit??
And because the Motul smells nice there is no toxic fallout!!