I know this has a lot of variables, but in a 90 automatic, or similar,
non-freeway driving, the only "extra" would be running the stereo while
driving (No AC, fridge, heat, driver only, no passengers, no heavy load,
etc,) about how far should you be able to go on a full tank of gas?  How far
into the red do you have to be to run out of gas?  Does a 90 Westy automatic
have fuel injection, making it a bad thing to run out of gas?
Patti