I’ve been using Thermal Grizzly Kryonaut and CM MasterGel Maker lately. Both are top notch IMHO.
That’s to get the cats up to temp in a shorter amount of time.
1 Like
@Robert-Gift - why don’t you just use the silicone grease like the directions state?
Texas , there you go being logical again 
1 Like
Silicone grease is different than thermal compound. Silicone grease may be the carrier for the particulate material in some thermal compounds but pure silicone grease is clear. This is the stuff you use to protect electrical connections such as battery terminals, make hoses easier to remove in the future, etc.
I didn’t know there was a block heater that worked on contact like this. It will work but not as effectively.
True, but that’s what they recommend.
OK, I’m sorry but I’ll admit I have no idea what this device is and what hole in the block it gets inserted into. I guess if NAPA has it, it must be used but I just can’t seem to figure out what hole would be in the block.
Years ago though I bought a lifetime supply tube of silicone grease because the manual said to use it on brake calipers. It is grease, not at all like the silicone I use on tile.
MAybe I am confused. Is this for the O-ring on the one where it inserts into the block? That makes more sense as it has nothing really to do with thermal transfer. Or is it the one where it mates to the recess on top of a freeze plug and transfers through contact?
It appears to be a replacement element for an existing block heater, that for Mr. Gifted or not does not currently exist. My last quote was $135 to replace a freeze pug with a block heater, but enjoying the misery of dear Mr Robert fighting through the slush to to install a minimally effective magnetic oil pan heater when he refuses to make a logical soluion of a block heater.
Has anyone mentioned one of these?
When properly installed they seem to work great. There is heat available for defrost as soon as the engine is started.
1 Like
They work great in Mississippi? Sorry @Rod-Knox, I couldn’t help it. 
1 Like
This KATS heater cartridge fits into an existing engine block hole. (Apparently that is where Letsuck’s heater would be if ouRX350 came with one.)
KATS guy said if part of the cartridge’s body does not contact the block’s metal, theater element could getoo hot athat spot and burn out.
So they wanthe heat-conductive grease to fill in any non contact spaces.
The magnetic oil paheater which I found worked well! Heat also conducted tother areas of thengine.
Whatever heat was lost from theater went up into thengine compartment. A sheet draped on the hood andown over the grilhelped keep heat in.
But dirtyvet shush falling on my head, hair and uniform was a mess when reaching under to attach theater in the cold garage at 0-dark thirty.
For now, a 250-watt outdoor flood light straight up an inch from the oil pan radiates heat onto the oil pan and engine block. Mustill get down on knees and move the 2/4 stud holding the lamp so the lamp is properly positioned.
The plug-in cartridge heater would be.tter.
So use silicone grease, like the NAPA listing says. What’s the problem?
Am I the only one who thinks R G only wants to argue and get attention ?
NAPA saysilcone grease is a non-heat conductor.
Whoever told you this is (obviously) wrong, everything conducts heat, some things better than others. Silicone grease is an electrical insulator, not a heat insulator.
It is specified in the NAPA listing you posted, so that’s what I’d use, unless the manufacturer has a better recommendation. Here’s what NAPA said:
“Installs in engine block core hole. No longer necessary to remove a frost plug or drain coolant. Just coat with silicone grease (not included), insert and clip into place.”
Long long ago while in high school and working part time as a mechanic’s assistant/toilet engineer there was a particularly cold winter with the temperature remaining below freezing for weeks at a time which was unusual here but the fleet manager had block heaters on every heavy duty truck in the fleet with a proper connection for every truck so the trucks, both gas and diesel fired up like it was September and the windshields were clear in minutes except for vehicles that weren’t plugged in.
But no, we don’t have “real winters” like the Christmas cards show.
2 Likes
We don’t have snowy Christmas’s in Central Maryland either. Western Maryland does, though.
1 Like
I’ve spent a few weeks in some miserably cold places and as I have left each one felt more and more certain that I was meant to live in a more comfortable place weather wise and after a week at Cruz Bay I was certain that I had found the Paradise meant for me. But as always things don’t always work out as I hoped I did enjoy my short stay there though. And have a Cruz May snow man to prove it.