Engine block heater installed !

[slogfilet]

If the gas man overfilled your tank, you should have a "really good" tank next time. It all balances out.

I'd say it's still worth it to have a block heater. In cold temperatures, your mileage will go down... it'll just go down less with a block heater. =) It can be hard to tell what the exact benefit is without an onboard fuel computer or at least a year's worth of data (including outside temperature.)

If there's a place your wife can plug in at work, that could make a big difference!