Is the 82 Degree Thermostat to suit Ecotec

Yes, it will be suitable for VS V6. The fan normally comes on just above half way on the temperature gaugeA cooler thermostat will not influence the temperature at which the fan comes on, the program in the chip/memcal does this.However, from experience you'll find that the average operating temperature will be reduced by around a 1/4 on the gauge, unless you're stuck in traffic for a long time. In which case the temperature will eventually creep up to the set temperature of the fan, however will take considerably longer to get to that temp with the cooler thermostat