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The cost to run it depends on what the electric co charges per kWh. Mine works out to around 14 cents per kWh, so running it 10 hours a day would be 1.40 or $42 a month. Some places charge more, so you you could easily spend over $50 a month running the block heater without a timer. Oh and 24 hours here would be $3.36 a day.
Exactly! Here in the North East out rates are some of the highest in the nation so it is very costly to run one here.
A couple points here... First, you already have the answer on the math. The heater does indeed draw 1000W (see pic below). It's whatever your cost per kWh is x hours on. If you get charged 15c per kWh, and you run it 3 hours a day, it's 45c per day, or just under $15 per month. That said, 3 hours is too long IMHO. 1 hour should be plenty.
The argument on syn is a no-brainer for me. Syn Rotella costs 50% more than dino roughly, but you can run it 50% longer (7500 miles instead of 5000) making the cost premium a complete wash. It costs you NOTHING to run it! But you get the benefits of better cold starts and it handles heat better too. There is no down side, not even cost. Why everyone doesn't run it is a mystery to me.
A couple points here... First, you already have the answer on the math. The heater does indeed draw 1000W (see pic below). It's whatever your cost per kWh is x hours on. If you get charged 15c per kWh, and you run it 3 hours a day, it's 45c per day, or just under $15 per month. That said, 3 hours is too long IMHO. 1 hour should be plenty.
The argument on syn is a no-brainer for me. Syn Rotella costs 50% more than dino roughly, but you can run it 50% longer (7500 miles instead of 5000) making the cost premium a complete wash. It costs you NOTHING to run it! But you get the benefits of better cold starts and it handles heat better too. There is no down side, not even cost. Why everyone doesn't run it is a mystery to me.
My block heater plugged into my Kill-A-Watt:
Because I got better UOA on non synthetic and was getting much better change intervals, but hey, that's MY truck. As they say "Individual results will vary".