DO YOU REALLY NEED A GRID HEATER?? 

What needs to be taken into account that can’t be seen is what effect the grid heater has on combustion. When the grid heater is on the air is warmer and in the “zone” that diesel will combust the best in. When you don’t run a grid heater you have lots of cylinder wash from unburnt fuel. This is bad for 2 reasons, first faster oil dilution rate because more fuel is going by the piston and into the crank case, and second when that fuel “washes” down the cylinder it brings the oil with it meaning higher wear rates.

-16 there and somewhere it’s 35 and a 7.3 is hooked to its umbilical cord still struggling to start 😂😂

When its negative 16 an you find out she's home alone..

New meaning of living off the grid.

That poor thing sounded terrible. That probably took 100k off of its life

Your not doing your engine any favors lots of raw fuel washing down the cylinders.

Tune in next week when we try to start my truck without fuel.

I deleted my Grid Heater because of the Amp draw at startup. Block heater is all you need.

Yah it starts. But why stress the engine when we have block heaters and grid heaters. Old time truckers would love to have the stuff we have now. That oil is like molasses. Id rather plug in and go

Imo unless you're trying for an all out 1000 hp build drag type truck why put that stress on the rotating mass of the motor and starter. Grid heater is better than glow plugs imo and no real reason not to run one in the event you're somewhere you cant plug the truck in at night like hunt camp or something. I consistently plug my truck in when it get to about 30* ish at night when I'm home and will drive the truck the following day. However hunt camp or even at work I cant plug the truck in so the grid heater is effective and efficient for quick non hard starts.

I always loved the sound of a cold diesel. Something fun about imagining the engine warming up and knowing there is small little fist sized explosions making it that warm when it's that cold out. Cool stuff!

Knowing full well what is happening to the engine, this is hands down my favorite cold start video! Love the truck, and the channel. Thanks for doing what you do!

had a 2001 super duty 7.3 living in MD near PA and had a couple of really cold winters. Did some checking on how much the block heater made the meter on the house spin and put a timer on the block heater so it came on about an hour before I was ready to head off to work. Made a big difference in how the old ford started and had pretty much instant heat for the defrosters.

ohhh yeee heard that injection timing xD, i like the first go around when she comes out of the lope when the cylinders have some heat in them

All you need is the block heater in cooler temps for the 5.9. Yes, the grid heater helps a little but but the grid heater was mainly thrown on the Cummins Dodges to satisfy EPA nutjobs for emissions at that time. The ''industrial Cummins'' at that time that went into buses, generators, boats, farm equipment, etc didn't have them even though it was the same engine.

That was a really educational video! Great set of tests!

Very good video. I’m running a custom 12valve tune on my 05 and the writer of the tune forgot to turn on grid heater within it. So I just keep my truck plugged in. But next week supposed to be in the teens so we will see. I might try it without anything. Thank you for this video!!!

Have a 2000 and even at 30 deg with a bad grid heater it started just like yours. Like the video showing all three. Thanks. Headed out to replace mine today and hoping it's not the harness as well. We shall see.

I live in Ontario and when it’s below -10c I plug it in and use my grid heaters. Starts good. Just warms up faster being plugging in. But I also have a 12 valve

Love the content you're putting out... keep up the good work and you have some badass builds