I still have mine, because I see no reason to replace it. Around here, a lot of the roads are gravel(when I can drive it on the road) and the oil bath air filters were ideal(from what was in the shop manual) for driving on dirt roads. As far as it catching on fire, they are supposed to act as spark arresters. Plus oil doesn't burn fast like gas does. I'd let someone who actually knows what they are talking about explain it though.