This makes me sick to my stomach. After almost 40 years in the business as an auto mechanic we still have Morons being hired as management and customers trusting that they will be the ones to trust. What really irks me about your question is that you state you have very little automotive knowledge and you can't afford or take the time to learn properly. Go and sell shoes.
automotive-knowledge.com
autoknowledge.com
How stuff works .com
Your own practical knowledge will help you a lot in gaining more of it.I think only reading contents from the website is not enough,practical knowledge is more helpful....
I am being trained to become a general manager of an auto care store (auto maintenance, mechanic work, tires etc) I'm great at marketing, management, business etc but have very little automotive knowledge. I also can't afford or have time to go to classes or anything. I'm being trained but if there was a good website out there to help me learn faster that would be great.