Hi guys,

For a a couple of months now I have been noticing my temperature needle floating around between the mid way mark (Where it should be) and the mark below, sometimes even touching the mark below.

As a consequence, the fuel economy seems to be suffering. It could be the colder weather but the drop of 5-10 mpg seems a little extreme for that.

My question is, is how likely is this issue related to the thermostat or whether it's related to a sensor issue? Are there any ways that I can easily tell which issue it might be?

Thanks in advance