The issue is that methanol is 21% lighter than water. It has a specific gravity of .79.
Meaning that things dont like to float in it. It the liquid was molasses, then the float wouldnt have any issues "staying up". So what happens is when the car moves the float "bounces" and the LED blinks. As the LED blinks more aggressively your tank is lower. If your at a stop and the LED is "ON".. then its time to fill. Other wise, disreguard it.
I have a delay circuit I built to condition the signal. What it does is ignores the bouncing float until its down for 5 seconds.. then turns the LED on.. I offered this 2 years ago on the board, and nobody wanted it. They felt a blinking/sloshing LED gave better warning than a all of a sudden its low condition.
Think of it like the fuel guage on the Buick when it gets below a 1/4 tank and it bounces to "Empty" You can guage how much fuel by watching it bounce.. once on "E" and it no longer bounces.. better fill up.
If anyone is "annoyed" by the blinking LED, contact me for the delay circuit. Just dont complain when it gets low and you didnt have warning.
For what its worth, the float used in the tank is designed for washer fluid. Which is X percentage methanol.
Cheers
