Mr. Chair, there has been extensive research indicating that the corrosiveness of diluted bitumen is no greater than that of light crude. However, it is part of the plan to continue to conduct further research in that connection. The research will relate to non-conventional petroleum products such as diluted bitumen, but beyond that to enhancing understanding of how these substances behave when spilled in a marine environment, including in the north.
In the House of Commons on May 21st, 2013. See this statement in context.