Oil pre-heater

[Ron Gusack]

I just got a couple Moroso 23991 400 watt probe type heaters and I've been told they can scorch the oil. I notice that the Stefs is a much lower wattage. Which oil/trans oil heater do you use? Thanks for your advice.

[Alan Nyhus]

For engine oil, a Kats watt magnetic heater...steel pan, of course. For the trans, a Zero Start heater with a 1/2 NPT bung welded to the trans pan. -Al

[Dave Noll]

Got a few of the Kats 300 watt magnetic heaters. Gonna have to get something different for the EF/S car, Aluminum pan.

[Shadylane]

I’ve used the Moroso external heating pad for a couple years now. Takes about 30 minutes to heat the oil. Sticks on, they have different sizes or a model that attaches with springs.

Moroso 23996 - Moroso External Heating Pads

Kelly

[jmantle]

Originally Posted by Ron Gusack

I just got a couple Moroso 23991 400 watt probe type heaters and I've been told they can scorch the oil. I notice that the Stefs is a much lower wattage. Which oil/trans oil heater do you use? Thanks for your advice.

We put heaters in the oil pans and hydraulic tanks of heavy equipment on a regular basis, the general rule was no more than 10 watts per square inch of heating element. High wattage units made for water will cook the oil. More info here, https://www.warrenelectriccorp.com/a...rs/default.asp

Jim Mantle V/SA 6632

[bykr]

I siliconed the Moroso heater to the bottom of my aluminum pan worked great, but would leave it on for only about 30-45 minutes.

[Ron Gusack]

Originally Posted by jmantle

We put heaters in the oil pans and hydraulic tanks of heavy equipment on a regular basis, the general rule was no more than 10 watts per square inch of heating element. High wattage units made for water will cook the oil. More info here, https://www.warrenelectriccorp.com/a...rs/default.asp

Jim Mantle V/SA 6632

Thanks for that information Jim. If my math is correct, this heater has 63.69 watts per sq. in. I guess I'll send both of them back. The heating probe is 4" long and .5" in diameter with 400 watts.

I tried a stick on pad but when I saw smoke coming out of the diaper after a few minutes, I took it off.

[Ron Gusack]

Originally Posted by Alan Nyhus

For engine oil, a Kats watt magnetic heater...steel pan, of course. For the trans, a Zero Start heater with a 1/2 NPT bung welded to the trans pan. -Al

I'll check these out Alan, thanks

[FED 387]

Definitely look at the Stef's heaters ---either the pad or the in the pan style---the in the pan style is for use in OILS --the Moroso style heater is for WATER---Go to Stef's website read about their products--- other suppliers may make a similar product but the Stef's style will not scorch the oil because of its design---the only difference between using it in a steel or aluminum pan is the bung that you weld into the pan steel for a steel pan and aluminum for an aluminum pan-- FED 387

[Eman]

Originally Posted by Ron Gusack

Thanks for that information Jim. If my math is correct, this heater has 63.69 watts per sq. in. I guess I'll send both of them back. The heating probe is 4" long and .5" in diameter with 400 watts.

I tried a stick on pad but when I saw smoke coming out of the diaper after a few minutes, I took it off.

Some have used a plumbers pad, available at Lowes, to protect their diaper. Pad has to be sealed around the edhes to the pan if it peels it will burn itself up.