California Air Resources Board, Diesel Risk Reduction Plan, Appendix IX, October 2000. ... August 2003. 72 Mitsubishi engines are particularly prone to problems with pure biodiesel, which has stronger solvent properties ... aquot; Verification of O; Diesel, Inc.: Ethanol-Diesel Fuel (0:-Diesel, aquot; September 23, 2003, http://www. arb.ca.gov/fuels/diesel /altdiesel / altdiesel.htm. ... Amendments to the California Diesel Fuel Regulations, aquot; Staff Report: Initial Statement of Reasons, 6 June 2003: 108.