I was bored in Physics the other day and I hadn't seen an HP program
to keep track of car repairs, gas mileage, oil, etc. and thought it
was about time I learned to program.  This is my first attempt at
User-RPL and so please don't flame me about how unoptimized and
hard to follow the program is.  I am very pleased that it even works!!

Directions:

Download 'gas' to your HP using ascii transfer.  You should have a new
directory called 'gas'.  Enter this directory and select the main program
'car'.  This is the only program you will ever need to run.  In order to get
accurate MPG, you will need to fill up your tank AND THEN RUN THE PROGRAM FOR
THE FIRST TIME.  It asks you for the odometer reading which will serve as the 
basis for the total MPG stat.  If you would like to see the program 
immediately but don't want to fill up your tank, then feel free to play 
around.  When you do fill your tank, store a '0' into the following variables:
'oilmiles' 'beginmiles' 'cumgallons' 'cumprice' 'galsinlast' and 'milatlast'.
This will return you to the "first use" state.

I welcome all of your comments.  As I said I am learning how to program
and obviously need all the help I can get.  If you like my program, email
me and let me know.  I won't insult anyone by asking for money.  I will
ask for your suggestions.  The only way for me to learn is for you to help
me.  I will be glad to email anyone a commented copy if my rambling style
is to hard to follow.  Good luck!

BTW all the standard disclaimers apply.  I have a GX rev M.  This prog
works great on mine but since I do use the choose command I don't think
this will work on s/sx.  BACK UP BEFORE USING!!!!! Just in case 8-).

Thanks to Joseph Horne who was kind enough to explain how to get my Title
grob to stay on the screen for a time and then execute the program.  The rest
I figured out for myself.