In a move that helps bring some funding and credibility to the series Sunoco has come on board as the official fuel of the ICS and FIL. They will apparently team with APEX, which will continue to provide Ethonal for the series.

http://www.businesswire.com/portal/s...11&newsLang=en

No idea if this means Sunoco is planning on leaving NASCAR, but they are locked into a 10-year deal with NASCAR until 2013, and the IRL deal will last from 2011 to 2014, and include some in-store promotion of the ICS, I'm sure NASCAR can't be happy about that.