How can i make my LED display and gas level reading more accurate in my gas tanks?

All gas cylinders have design limitations when they are used to send the gas level to the LED or to the manual gauge and this is simply because of the shape and size of the cylinder, the angle of the location / vehicle its connected too plus the propane expanding and contracting when the ambient temperature changes but there is something you can try which might work for you as it takes in to account all those variables and makes it somewhat more accurate on your specific application / vehicle.

When first filling the gas tank up only fill it to half full.  Then go underneath the vehicle and remove the 2 small screws that hold the 2 wire 0-95 ohm sender in place on to the brass float valve we fitted to the tank ( DO NOT REMOVE THE 4 ALLEN BOLTS HOLDING THE MAIN VALVE INTO THE TANK ).

2 wire 0-95 ohm sender.                                                 Remove 2 small phillips screws to allow 2 wire sender to be rotated around on its axis till LED's show half )

Next hold the 2 wire 0-95 ohm sender unit into the brass valve ( so the magnet on the sender can still connect to the magnet in the brass float valve ) and rotate it left or right on its axis until the LED display in the vehicle shows half of the LED's lighting up - you have now semi calibrated the sender to your tank side, angle on your vehicle and to half the gas level ( temp dependent obviously ).  Make a note of how the 2 wire sender unit now looks in this position you have put it and secure it in the same orientation you have just set by gluing or securing with thin double sided sticky or something similar.  It can't be to thick if your securing it from the back of the 2 wire sender as you need the magnets in the valve and sender to keep in contact with each other so when the float in the tank moves it will move the magnet and pull the 2 wire sender to the right location )

Now when you go to fill up the LED's should show full and then work better than before.  You can always play around with this and set it to 1/4 full perhaps if that works better for you.

This will work with any make or brand of gas tank to help make it more accurate for you.