1996 Pontiac Bonneville Owner's Manual - Page 126

Fuel Gage Boost Gage (Option) Your fuel gage tells you about how much fuel you have left, when the ignition is on. When the gage in the reads yellow band, a warning chime will sound and the CHECK GAGES warning light will goon, if you have this option. Here are some things that some owners ask about. None of these show a problem with your fuel gage: At the service station, the gas pump shuts before off the gage readsFULL (F). It takes a little more or less fuel to fill up than the gage indicated. For example, the gage may have indicated the tank was half full,itbut actually took a little more orless than half the tank's capacity tol fl i the tank. Vehicles equipped with the supercharged engine have 0 The gage moves little when you turna corner, a this boost gage that indicates vacuum during light to. speed up, or make a hard stop. moderate throttle and boost under heavier throttle. The gage displaysthe air pressure level psi going intothe in The gage doesn't go back to EMPTY (E) when you engine's combustion chamber. turn off the ignition. The gageis automatically centeredat zero psi every If you have the large span (220")gage, the needle time the engine started. Actual vacuum or boost is is moves more for agiven amount of fuel.This does not displayed from this zero point. Changesambient in indicate excessivefuel consumption, andis normal. pressure, suchas driving in mountains changing and weather, will slightly change the zero reading. OS