Clean Chains - Chain Maintenance

I've just bought some citrus-based de-greaser and some veggie lubricant - if I'm going to ride a bike it seems like I should try to avoid crude-oil based products if I can.

Problem is, they might be shit. I'll let you know.

In the volumes that you're using on a bike I really wouldn't worry about it. Citrus based stuff is significantly more expensive than other products, and you just have to look at the roads when it rains to see that you're nowhere near a significant contributer to the problem.