Hot smell after 10mins running VT executive

A true reading of the temperature well if you don't believe the gauge then how about one of those digital heat reading guns.
How long since all the cooling and heater hoses were last replaces?
Might be the heater trap we to had that smell and the heater tap had cracked which is normal for the older Commodores.
Then again it might be a crack in the radiator, normal again with the plastic casings.

 

Just pray to the Commodore gods that it's not a leaking heater core thingy that's located up under the dash.
Have you tested all the heater and cooling hoses, with the engine hot give them a squeeze to see if there still in serviceable condition.

 

Guys there pretty much Identical aren't they just different years.
How scary was replacing the heater core.

 

I had a leaky heater core around 17 months ago.
Got some radiator sealant.
Copper based powder type I think it was.
Haven't had a problem with it so far.
It will eventually need replacing.

 

Is your rocker cover leaking onto the exhaust? That will smell like a overheating motor.

 

I have this same thing happening. I know mine is from the left rocker cover leaking at the rear onto the exhaust as brisbarnz said. It's a common problem on vt and vx Commodores. I can smell it after a few minutes of driving. I usually degrease the area and its all good for a few months. Only doing that till I have time to change the gaskets.