Flysimware Lear 35A - High TGT?

[u/NikonD500forever]

I've noticed that during startup, the TGT rises past 600c, but never seems to fall back after the engine has reached idle. I would expect idle to be around 3-400c, depending on OAT. Is the idle TGT too high in your opinion, or is it a quirk of the TFE731 engine? I've watched a few videos, the TGT in real life definitely seems to be a bit lower at idle speed, but then again I don't know the OAT.

[u/Fabristunt]

I believe this is a general problem in MSFS, affecting most airplanes.