CERTIFICATION PURSUANT TO 18 U.S.C.
                      SECTION 1350, AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In  connection  with the  Quarterly  Report of Valero  L.P. on Form 10-Q for the
quarter  ended  June  30,  2003,  as  filed  with the  Securities  and  Exchange
Commission  on the date hereof  (the  Report),  I, Steven A. Blank,  Senior Vice
President and Chief Financial Officer of Valero GP, LLC hereby certify, pursuant
to  18  U.S.C.  Section  1350,  as  adopted  pursuant  to  Section  906  of  the
Sarbanes-Oxley Act of 2002, that:

(1)  The Report fully complies with the  requirements  of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

(2)  The information  contained in the Report fairly  presents,  in all material
     respects, the financial condition and results of operations of Valero L.P.

/s/ Steven A. Blank
- -------------------
Steven A. Blank
Senior Vice President and Chief Financial Officer
August 13, 2003


A signed  original  of the  written  statement  required by Section 906 has been
provided to Valero L.P. and will be retained by Valero L.P. and furnished to the
Securities and Exchange Commission or its staff upon request.