The manual for my 2003 VW TDI says to change the oil every 12 months or 10,000 miles.  My dealer says every 6 months or 5,000 miles.

Are they just trying to make twice as much money off my oil changes, or is there a legitimate reason to change the oil twice as often as VW originally printed in the book?


Question: Multiple Logistic Regression in Python
Answer: If getting the job done in R (through one of rpy2, pyRserve, or pyper) is an option, you could this to get the job done. If questions about the statistical method to use, this "cross-validated" is a better place to ask.