MPG and Engine Temp?

[Clive Apps Techno-Logicals 416 510 0020]

> 
> Would the running temp of an engine/thermostat (185 degrees vs. 195 degrees)
> significantly alter the MPG of the EFI system?
> Meaning would 185 get worse mileage then 195?
> 

on some systems yes
depends where the cold start enrichment is set to shutoff
On a friends 3.3l Chrys minvan if the negine is cold we have seen up
to a 20% milage decrease as calculated by the factory optional on board
computer

Clive