Garmin G3X Pilot's Manual page 116

EIS
When the LEAN Softkey is selected, the Lean Assist Mode waits for a cylinder's EGT
to reach a peak temperature and decrease by at least 7°F. The peak EGT for each
cylinder is displayed as a small grey number above each bar on the graph. To prevent
detection of false peaks, the system waits for a cylinder's EGT to increase by at least
15°F before detecting a peak. In addition, if the cylinder temperature rises above a
previously detected peak by more than 100°F, the previous peak is considered false.
A cylinder temperature bar graph appears if CHT/EGT data is configured on 4 or
more cylinders. A readout showing the temperature deviation from peak (DEGT) is
displayed in place of the normal EGT temperature number. The temperature deviation
of the first cylinder to peak is highlighted light blue. A light blue outline appears
around the temperature deviation of the last cylinder to peak. A light blue hollow box
appears above the cylinder's bar to represent the peak EGT for that cylinder.
CHT
Leaning to First Peak (ENG Page - Full-Screen MFD)
98
Indicates Difference Between Present
and Peak Temperature
1st
Cylinder
to Peak
Garmin G3X Pilot's Guide
Cylinder Peak
Temperature
190-01115-00 Rev. G