140kms with the last light blinking?!
You got a SGI kit from GreenFuel? I think it's in the programming. In your case, it probably blinks too early. With 140kms, parang half-tank pa yan.
Sa akin mga 220kms ang 47 liters. So pag-nag-blink na, I wouldn't want to drive it for more than 20kms. Pero di pa naman ako nauubusan ng LPG. The EROOM switch as 5 LED lights - red "E", 3 green, and another green "F". Yung red "E" (empty) LED yung nag-b-blink after a while. I have the standard 66-liter cylidrical tank, 50 liters ang max na na-load ko so far.