Borrower: PENN OCTANE CORPORATION  Lender: Bay Area Bank
          900 VETERANS BLVD.               900 Veterans Blvd.
          SUITE 240                        P.O. Box 2579
          REDWOOD CITY, CA 94063           Redwood City, CA 94064

Guarantor: JEROME B. RICHTER
           26280 DORI LANE
           LOS ALTOS HILLS, CA 94022


AMOUNT  OF  GUARANTY.    The  amount  of  this  Guaranty  is  Unlimited

CONTINUING UNLIMITED GUARANTY.  For good and valuable consideration, JEROME B.
RICHTER  ("Guarantor")  absolutely and unconditionally guarantees and promises
to pay to Bay Area Bank ("Lender") or its order, on demand, in legal tender of
the United States of America, the Indebtedness (as that term is defined below)
of  PENN OCTANE CORPORATION ("Borrower") to Lender on the terms and conditions
set  forth  in this Guaranty.  Under this Guaranty, the liability of Guarantor
is  unlimited  and  the  obligations  of  Guarantor  are  continuing.

     Borrower.    The  work  "Borrower"  means  PENN  OCTANE  CORPORATION.

     Guarantor.    The  word  "Guarantor"  means  JEROME  B.  RICHTER.

     Guaranty.   The word "Guaranty" means this Guaranty made by Guarantor for
the  benefit  of  Lender  dated  April  2,  1997.

     Indebtedness.   The word "Indebtedness" is used in its most comprehensive
sense  and  means  and  includes  any  and  all  of  Borrower's  liabilities,
obligations,  debts,  and  indebtedness to Lender, now existing or hereinafter
incurred  or  created,  including,  without  limitation,  all loans, advances,
interest,  costs,  debts,  overdraft  indebtedness,  credit card indebtedness,
lease  obligations,  other obligations, and liabilities or Borrower, or any of
them,  and  any  present or future judgments against Borrower, or any of them;
and  whether  any  such indebtedness in voluntarily or involuntarily incurred,
due or not due, absolute or contingent, liquidated or unliquidated, determined
or  undetermined;  whether Borrower may be liable individually or jointly with
others,  or  primarily  or  secondarily,  or  as  guarantor or surety; whether
recovery  on  the  indebtedness  may  be or may become barred or unenforceable
against  Borrower  for  any  reason  whatsoever,  and whether the indebtedness
arises  from  transactions  which  may  be  voidable  on  account  of infancy,
insanity,  ultra  vires,  or  otherwise.

     Lender.    The  word  "Lender"  means  Bay  Area Bank, its successors and
assigns.

     Related  Documents.    The  words  "Related  Documents"  mean and include
without  limitation  all promissory notes, credit agreements, loan agreements,
environmental agreements, guarantees, security agreements, mortgages, deeds of
trust,  and  all  other  instruments, agreements and documents, whether now or
hereafter  existing,  executed  in  connection  with  the  indebtedness.

NATURE  OF  GUARANTY.  Guarantor's liability under this Guaranty shall be open
and  continuous  for  so  long  as  this Guaranty remains in force.  Guarantor
intends to guarantee at all times the performance and prompt payment when due,
whether  at maturity or earlier by reason of acceleration or otherwise, of all
Indebtedness.    Accordingly,  no  payments  made  upon  the indebtedness will
discharge or diminish the continuing liability of Guarantor in connection with
any  remaining  portions  of the Indebtedness or any of the Indebtedness which
subsequently  arises  or  is  thereafter  incurred or contracted.  Any married
person  who  signs  this Guaranty hereby expressly agrees that recourse may be
had  against  both  his  or  her  separate  property  and  community property.

DURATION  OF  GUARANTY.  The Guaranty will take effect when received by Lender
without  the necessity of any acceptance by Lender, or any notice to Guarantor
or  to  Borrower,  and  will  continue  in  full  force until all indebtedness
incurred  or  contracted  before receipt by Lender of any notice of revocation
shall have been fully and finally paid and satisfied and all other obligations
of  Guarantor  under  this  Guaranty  shall  have  been performed in full.  If
Guarantor elects to revoke this Guaranty, Guarantor may only do so in writing.
Guarantor's  written  notice  of  revocation  must  be  mailed  to  Lender, by
certified  mail,  at the address of Lender listed above or such other place as
Lender  may  designate  in  writing.   Written revocation of the Guaranty will
apply  only  to  advances  or new Indebtedness created after actual receipt by
Lender  of  Guarantor's  written  revocation.    For  this purpose and without
limitation, the term "new Indebtedness" does not include Indebtedness which at
the  time of notice of revocation is contingent, unliquidated, undetermined or
not due and which later becomes absolute, liquidated, determined or due.  This
Guaranty  will  continue  to  bind Guarantor for all  Indebtedness incurred by
Borrower  or  committed  by  Lender  prior  to  receipt of Guarantor's written
notice  of  revocation,  including  any extensions, renewals, substitutions or
modifications  of  the Indebtedness.  All renewals, extensions, substitutions,
and modifications of the Indebtedness granted after Guarantor's revocation are
contemplated  under  this Guaranty and, specifically will not be considered to
be  new  Indebtedness.  This Guaranty shall bind the estate of Guarantor as to
Indebtedness  created  both  before  and  after  the  death  or  incapacity of
Guarantor, regardless of Lender's actual notice of Guarantor's death.  Subject
to  the  foregoing,  Guarantor's  executor  or  administrator  or  other legal
representative  may  terminate  this  Guaranty in the same manner in which the
Guarantor  might  have terminated it and with the same effect.  Release of any
other  guarantor  or  termination of any other Guarantors shall not affect the
liability of any remaining Guarantors under this Guaranty.  The obligations of
Guarantor  under  this  Guaranty  shall  be  in addition to any obligations of
Guarantor  , or any of them, under any other guaranties of the Indebtedness of
Borrower  or  any  other  person heretofor or hereafter given to Lender unless
such  other  guaranties  are modified or revoked in writing; and this Guaranty
shall  not,  unless herein provided, affect, invalidate, or supersede any such
other  guaranties  are modified or revoked in writing; and this Guaranty shall
not,  unless  herein provided, affect, invalidate, or supersede any such other
guaranty.    it  is  anticipated  that fluctuations may occur in the aggregate
amount  of  indebtedness  covered  by  this  Guaranty,  and it is specifically
acknowledged  and  agreed  by  Guarantor  that  reductions  in  the  amount of
Indebtedness, even to zero dollars($0.00), prior to written revocation of this
Guaranty  by  Guarantor  shall  not constitute a termination of this Guaranty.
This  Guaranty is binding upon Guarantor and Guarantor's heirs, successors and
assigns  so long as any of the guaranteed Indebtedness remains unpaid and even
though  the  Indebtedness  guaranteed  may  from  time to time be zero dollars
($0.00).

GUARANTOR'S  AUTHORIZATION  TO  LENDER.    Guarantor authorizes Lender, either
before  or  after  any revocation hereof, without notice or demand and without
lessening  Guarantor's  liability under this Guaranty, from time to time:  (a)
prior to revocation as set forth above, to make one or more additional secured
or unsecured loans to Borrower, to lease equipment or other goods to Borrower,
or  otherwise  to  extend  additional  credit  to  Borrower;  (b)  to  alter,
compromise,  renew,  extend, accelerate, or otherwise change one or more times
the  time  for  payment  or other terms of the Indebtedness or any part of the
Indebtedness, including increases and decreases of the rate of interest on the
Indebtedness;  extensions  may  be  repeated  and  may  be for longer than the
original  loan  term;  (c)  to  take and hold security for the payment of this
Guaranty  or  the Indebtedness and exchange, enforce, waive, subordinate, fail
or  decide  not to perfect, and release any such security, with or without the
substitution  of new collateral; (d) to release, substitute, agree not to sue,
or  deal  with  any  one  or  more of Borrower's sureties, endorsers, or other
guarantors  on  any terms or in any manner Lender may choose; (e) to determine
how,  when  and  what application of payments and credits shall be made on the
Indebtedness;  (f)  to  apply  such security and direct the order or manner of
sale  thereof, including without limitation, any nonjudicial sale permitted by
the terms of the controlling security agreement or deed of trust, as Lender in
its  discretion  may  determine;  (g)  to  sell,  transfer,  assign,  or grant
participations  in  all  or any part of the Indebtedness; and (h) to assign or
transfer  this  Guaranty  in  whole  or  in  part.

GUARANTOR'S REPRESENTATIONS AND WARRANTIES.  Guarantor represents and warrants
to Lender that (a) no representations or agreements of any kind have been made
to  Guarantor  which  would  limit  or  qualify  in  any way the terms of this
Guaranty;  (b)  this Guaranty is executed at Borrower's request and not at the
request  of Lender; (c) Guarantor has full power, right and authority to enter
into  this Guaranty; (d) the provisions of this Guaranty  do not conflict with
or  result  in  a default under any agreement or other instrument binding upon
Guarantor  and  do  not  result  in  a violation of any law, regulation, court
decree  or  order applicable to Guarantor; (e) Guarantor has not and will not,
without  the  prior  written consent of Lender, sell, lease, assign, encumber,
hypothecate,  transfer,  or  otherwise  dispose of all or substantially all of
Guarantor's  assets  or  any  interest  therein;  (f)  upon  Lender's request,
Guarantor  will  provide  to  Lender  financial and credit information in form
acceptable  to  Lender, and all such financial information which currently has
been, and all future financial information which will be provided to Lender is
and  will be true and correct in all material respects and which currently has
been, and all future financial information which will be provided to Lender is
and  will  be true and correct in all material respects and fairly present the
financial  condition of Guarantor as of the dates the financial information is
provided; (g) no material adverse change has occurred in Guarantor's financial
condition  since  the date of the most recent financial statements provided to
Lender  and  no  event  has  occurred  which  may  materially adversely affect
Guarantor's  financial  condition;  (h)  no  litigation, claim, investigation,
administrative proceeding or similar action (including those for unpaid taxes)
against  Guarantor  is  pending  or  threatened;  (i)  Lender  has  made  no
representation  to  Guarantor  as to the creditworthiness of Borrower; and (j)
Guarantor  has  established  adequate  means  of  obtaining From Borrower on a
continuing  basis  information  regarding  Borrower's  financial  condition.
Guarantor  agrees  to  keep  adequately informed from such means of any facts,
events  or circumstances which might in any way affect Guarantor's risks under
this  Guaranty,  and  Guarantor  further  agrees  that,  absent  a request for
information,  Lender  shall  have  no  obligation to disclose to Guarantor any
information  or documents acquired by Lender in the course of its relationship
with  Borrower.

GUARANTOR'S WAIVERS.  Except as prohibited by applicable law, Guarantor waives
any  right  to require Lender to (a) make any presentment, protest, demand, or
notice  of  any  kind, including notice of change of any terms of repayment of
the  indebtedness,  default  by Borrower or any other guarantor or surety, any
action  or  nonaction  taken  by  Borrower,  Lender, or any other guarantor or
surety  of  Borrower,  or  the creation of new or additional indebtedness; (b)
proceed  against  any  person,  including  Borrower, before proceeding against
Guarantor,  (c) proceed against any collateral for the Indebtedness, including
Borrower's  collateral,  before  proceeding  against  Guarantor; (d) apply any
payments  or proceeds received against the Indebtedness in any order; (e) give
notice  of the terms, time and place of any sale of the collateral pursuant to
the Uniform Commercial Code or any other law governing such sale; (f) disclose
any  information  about the indebtedness, the Borrower, the collateral, or any
other  guarantor or surety, or about any action or nonaction of Lender; or (g)
pursue  any  remedy  or  course  of  action  in  Lender's  power  whatsoever.

Guarantor  also waives any and all rights or defenses arising by reason of (h)
any  disability  or other defense of Borrower any other guarantor or surety or
any  other  person;  (i)  the  cessation from any cause whatsoever, other than
payment  in  full, of the Indebtedness; (j) the application of proceeds of the
Indebtedness  by  Borrower for purposes other than the purposes understood and
intended  by  Guarantor  and  Lender; (k) any act of omission or commission by
Lender which directly or indirectly results in or contributes to the discharge
of Borrower or any other guarantor or surety, or the Indebtedness, or the loss
or release of any collateral by operation of law or otherwise; (l) any statute
of  limitations  in  any action under this Guaranty or on the Indebtedness; or
(m)  any  modification  or  change  in  terms of the Indebtedness, whatsoever,
including  without  limitation, the renewal, extension, acceleration, or other
change  in  the  time payment of the Indebtedness is due and any change int he
interest  rate,  and  including any such modification or change in terms after
revocation of this Guaranty on Indebtedness incurred prior to such revocation.
Until  all  indebtedness  is paid in full, Guarantor waives all rights and any
defenses  Guarantor  may have arising out of an election of remedies by Lender
even  tough  that election of remedies, such as a nonjudicial foreclosure with
respect  to  security  for  a guaranteed obligation, has destroyed Guarantor's
rights  of  subrogation  and  reimbursement  against  Borrower  or  any  other
guarantor  or  surety  by operation of Section 580a, 580b, 580d and 726 of the
California  Code  of  Civil  Procedure  or  otherwise.   This waiver includes,
without  limitation,  any loss of rights Guarantor may suffer by reason of any
rights  or protections of Borrower in connection with any anti-deficiency laws
or  other  laws  limiting  or  discharging  the  Indebtedness  or  Borrower's
obligations (including, without limitation, Sections 726, 580a, 580b, and 580d
of  the  California Code of Civil Procedure).  Guarantor waives all rights and
protections  of  any kind which Guarantor may have for any reason, which would
affect  or limit the amount of any recovery by Lender from Guarantor following
a  nonjudicial  sale  or judicial foreclosure of any real or personal property
security  for the Indebtedness including, but not limited to, the right to any
fair  market  value  hearing  pursuant  to  California Code of Civil Procedure
Section 580a.  Guarantor understands and agrees that the foregoing waivers are
waivers  of substantive rights and defenses to which Guarantor might otherwise
be  entitled  under  state  and  federal  law.  The rights and defenses waived
include,  without  limitation, those provided by California laws of suretyship
and  guaranty,  anti-deficiency  laws,  and  the  Uniform  Commercial  Code.
Guarantor acknowledges that Guarantor has provided these waivers of rights and
defenses  with  the intention that they be fully relied upon by Lender.  Until
all  indebtedness  is  paid in full, Guarantor waives any right to enforce any
remedy  Lender  may  have  against Borrower or any other guarantor, surety, or
other  person,  and  further, Guarantor waives any right to participate in any
collateral  for  the  Indebtedness  now  or  hereafter  held  by  Lender.

If  now  or  hereafter  (a) Borrower shall be or become insolvent, and (b) the
Indebtedness  shall not at all times until paid be fully secured by collateral
pledged by Borrower, Guarantor hereby forever waives and relinquishes in favor
of Lender and Borrower, and their respective successors, any claim or right to
payment  Guarantor may now have or hereafter have or acquire against Borrower,
by subrogation or otherwise, so that at no time shall Guarantor be or become a
"creditor"  of Borrower within the meaning of 11 U.S.C. section 547(b), or any
successor  provision  of  the  Federal  bankruptcy  laws.

GUARANTOR'S  UNDERSTANDING  WITH  RESPECT  TO WAIVERS.  Guarantor warrants and
agrees that each of the waivers set forth above is made with full knowledge of
its  significance  and  consequences  and  that,  under the circumstances, the
waivers  are reasonable and not contrary to public policy or law.  If any such
waiver  is  determined  to be contrary to any applicable law or public policy,
such  waiver  shall be effective only to the extent permitted by law or public
policy.

SUBORDINATION  OF  BORROWER'S  DEBTS  TO GUARANTOR.  Guarantor agrees that the
Indebtedness of Borrower to Lender, whether now existing or hereafter created,
shall  be  prior to any claim that Guarantor may now have or hereafter acquire
against Borrower, whether or not Borrower becomes insolvent.  Guarantor hereby
expressly subordinates any claim Guarantor may have against Borrower, upon any
account whatsoever, to any claim that Lender may now or hereafter have against
Borrower.  In the event of insolvency and consequent liquidation of the assets
of Borrower, through bankruptcy by an assignment for the benefit of creditors,
by  voluntary  liquidation, or otherwise, the assets of Borrower applicable to
the payment of the claims of both Lender and Guarantor shall be paid to Lender
and  shall  be  first  applied  by  Lender  to the Indebtedness of Borrower to
Lender.    Guarantor does hereby assign to Lender all claims which it may have
or  acquire  against Borrower or against any assignee or trustee in bankruptcy
of    Borrower; provided however, that such assignment shall be effective only
for  the  purpose  of  assuring  to Lender full payment in legal tender of the
Indebtedness.    If  Lender so requests, any notes or credit agreements now or
hereafter  evidencing  any debts or obligations of Borrower to Guarantor shall
be  marked  with a legend that the same are subject to this Guaranty and shall
be delivered to Lender.  Guarantor agrees, and Lender hereby is authorized, in
the  name  of  Guarantor,  from  time  to  time  to execute and file financing
statements and continuation statements and to execute such other documents and
to  take  such  other  actions  as  Lender  deems  necessary or appropriate to
perfect,  preserve  and  enforce  its  rights  under  this  Guaranty.

MISCELLANEOUS   PROVISIONS.  The following miscellaneous provisions are a part
of  this  Guaranty:

     Integration  Amendment>    Guarantor warrants, represents and agrees that
this  Guaranty,  together  with any exhibits or schedules incorporated herein,
fully  incorporates the agreements and understandings of Guarantor with Lender
with  respect  to  the  subject  matter  hereof  and  all  prior negotiations,
drafts,and  other  extrinsic communications between Guarantor and Lender shall
have  no  evidentiary  effect  whatsoever.    Guarantor  further  agrees  that
Guarantor has read and fully understands the terms of this Guaranty; Guarantor
has  had the opportunity to be advised by Guarantor's attorney with respect to
this  Guaranty;  the  Guaranty fully reflects Guarantor's intentions and parol
evidence  is not required to interpret the terms of this Guaranty.   Guarantor
hereby indemnifies and holds Lender harmless from all losses, claims, damages,
and  costs (including Lender's attorney's fees) suffered or incurred by Lender
as  a result of any breach by Guarantor of the warranties, representations and
agreements  of  this  paragraph.   No alteration or amendment to this Guaranty
shall be effective unless given in writing and signed by the parties sought to
be  charged  or  bound  by  the  alteration  or  amendment.

     Applicable  Law.  This Guaranty has been delivered to Lender and accepted
by Lender in the State of California.  If there is a lawsuit, Guarantor agrees
upon Lender's request to submit to the jurisdiction of the courts of San Mateo
County, State of California.  This Guaranty shall be governed by and construed
in  accordance  with  the  laws  of  the  State  of  California.

     Attorneys'  Fees;  Expenses.   Guarantor agrees to pay upon demand all of
Lender's  costs  and  expenses,  including  attorneys' fees and Lender's legal
expenses incurred in connection with the enforcement of this Guaranty.  Lender
may  pay  someone  else to help enforce this Guaranty, and Guarantor shall pay
the  costs  and  expenses  of  such  enforcement.   Costs and expenses include
Lender's attorneys' fees and legal expenses whether or not there is a lawsuit,
including  attorneys'  fees and legal expenses for bankruptcy proceedings (and
including  efforts  to  modify  or  vacate  any automatic stay or injunction),
appeals,  and  any  anticipated  post-judgment collection services.  Guarantor
also  shall pay all court costs and such additional fees as may be directed by
the  court.

     Notices.    All notices required to be given by either party to the other
under  this  Guaranty  shall  be in writing, may be sent by telefacsimile,and,
except  for  revocation notices by Guarantor, shall be effective when actually
delivered or when deposited with a nationally recognized overnight courier, or
when  deposited  in  the  United  States  mail,  first  class postage prepaid,
addressed  to the party to whom the notice is to be given at the address shown
above or to such other addresses as either party may designate to the other in
writing.  All revocation notices by Guarantor shall be in writing and shall be
effective only upon delivery to Lender as provided above in the section titled
"DURATION  OF  GUARANTY."   If there is more than one Guarantor, notice to any
Guarantor  will  constitute  notice  to  all Guarantors.  For notice purposes,
Guarantor  agrees  to keep Lender informed at all times of Guarantor's current
address.

     Interpretation.    In  all cases where there is more than one Borrower or
Guarantor,  then  all  words  used  in  this Guaranty in the singular shall be
deemed  to  have been used int he plural where the context and construction so
require;  and  where there is more than one Borrower named in this Guaranty or
when  this  Guaranty  is  executed  by  more  than  one  Guarantor,  the words
"Borrower"  and "Guarantor" respectively shall mean all and any one or more of
them.    The  words  "Guarantor,"  "Borrower," and "Lender" include the heirs,
successors,  assigns,  and  transferees  of each of them.  caption headings in
this  Guaranty  are  for  convenience  purposes only and are not to be used to
interpret  or define the provisions of this Guaranty.  If a court of competent
jurisdiction  finds  any  provision  of  this  Guaranty  to  be  invalid  or
unenforceable  as to any person or circumstance, such finding shall not render
that  provision  invalid  or  unenforceable  as  to  any  other  persons  or
circumstances, and all provisions of this Guaranty in all other respects shall
remain valid and enforceable.  In any one or more of Borrower or Guarantor are
corporations  or  partnerships, it is not necessary for Lender to inquire into
the  powers  of Borrower or Guarantor or of the officers, directors, partners,
or  agents  acting  or purporting to act on their behalf, and any Indebtedness
made  or  created in reliance upon the professed exercise of such powers shall
be  guaranteed  under  this  Guaranty.

     Waiver.   Lender shall not be deemed to have waived any rights under this
Guaranty  unless  such  waiver  is  given in writing and signed by Lender.  No
delay  or omission on the part of Lender in exercising any right shall operate
as  a  waiver  of  such  right  or  any  other right.  A waiver by Lender of a
provision  of  this  Guaranty  shall  not  prejudice or constitute a waiver of
Lender's  right  otherwise  to demand strict compliance with that provision or
any  other  provision  of  this  Guaranty.  No prior waiver by Lender, nor any
course  of  dealing between Lender and Guarantor, shall constitute a waiver of
any  of  Lender's rights or of any of Guarantor's obligations as to any future
transactions.  Whenever the consent of Lender is required under this Guaranty,
the  granting  of  such consent by Lender in any instance shall not constitute
continuing  consent  to  subsequent instances where consent is required and in
all  cases  such  consent may be granted or withheld in the sold discretion of
Lander.

ADDITIONAL  PROVISIONS  -  GUARANTOR.  AS AN INDUCEMENT TO LENDER TO EXTEND OR
CONTINUE  CREDIT  TO BORROWER, THE UNDERSIGNED AGREE(S) NOT TO FURTHER PLEDGE,
ENCUMBER  OR  SELL  THE  REAL  PROPERTY  LOCATED AT 26280 DORI LANE, LOS ALTOS
HILLS, CA.  IN ADDITION, IN THE EVENT OF BORROWER'S DEFAULT UNDER THE TERMS OF
ANY  NOTE  OR  SECURITY AGREEMENT EXECUTED IN FAVOR OF LENDER, THE UNDERSIGNED
AGREE(S)  TO  EXECUTE  A  DEED OF TRUST IN FAVOR OF LENDER COVERING THE ASSETS
LISTED  ABOVE.

EACH UNDERSIGNED GUARANTOR ACKNOWLEDGES HAVING READ ALL THE PROVISIONS OF THIS
GUARANTY  AND  AGREES  TO  ITS TERMS.  IN ADDITION, EACH GUARANTOR UNDERSTANDS
THAT  THIS  GUARANTY  IS  EFFECTIVE UPON GUARANTOR'S EXECUTION AND DELIVERY OF
THIS  GUARANTY  TO LENDER AND THAT THE GUARANTY WILL CONTINUE UNTIL TERMINATED
IN  THE  MANNER  SET  FORTH  IN  THE SECTION TITLED "DURATION OF GUARANTY." NO
FORMAL  ACCEPTANCE  BY  LENDER  IS  NECESSARY TO MAKE THIS GUARANTY EFFECTIVE.
THIS  GUARANTY  IS  DATED  APRIL  2,  1997.



/s/  JEROME  B.  RICHTER