Dielectric Grease (such as silicone-types like DowCorning DC4, etc) is also good when a dab is spread on spin-on filter gaskets, making future removal simple and easy.
The filter mfr’r instructs to use motor oil or chassis grease.
Bad Idea.
The reason to use a lubricant is to prevent the gasket from becoming dislodged during installation. But the problem with using motor oil or chassis grease is that the engine heat will cook and coke the oil/grease making the gasket STICK and preventing easy removal. It also can cause the gasket to separate from the filter during removal and remain on the Block! ….and that might go unnoticed and cause a leak at the next installation.
Use “silicone” grease or dielectric grease instead. Just a “dab”. It’s what is done on aircraft and is what I’ve done for decades on all spin on filters. They come off by hand.
(Caution: Do NOT overtighten them. The dielectric grease will make it easy to overtighten also. Install them until they bottom-out and then ONE more turn only.…(or to the specified torque.)
Try it. You’ll like it.
PS: I don’t believe for a minute that dielectric grease was the cause of an electrical fire due to loose or poor electrical connections. That’s an example of really misinformed, amateur investigation. The dielectric grease does Not prevent electricity making the required connection.…. the loose/lousy connection does that.