Oiling routine for naturally curly hair

by Nazia
(Pakistan)

I have naturally curly hair. I had my hair rebonded and have been using a straightener for two years. But this time I plan to start wearing my hair curly once again. Please help me with a few questions before I get around to doing that:

1) How often should I oil my hair? Or do you recommend not oiling the hair at all for naturally curly hair?

2) Which hair oil would you recommend for me? If you recommend a mixture of different oils then please please tell me the percentage of each to be mixed.

3) For how long should I let the oil stay in my hair before I wash it?

4) Is heating the oil before putting it in my hair a good idea?

5) Currently I shampoo and condition my hair twice a week. Should I keep that up or change the regime?