This is what ive had for the past 20 years ( got large 2 tubes of it ) from when I worked tap and meters installing Ramar Boxes on meters to read them. Ive been using it on all my electrical connections and bulb sockets to prevent corrosion and never had an issue. The stuff is really thick and does not dry out with age, Ive even used it as lubricant on power equipment exposed to weather ( brake lever shafts...ect... )

 

As I said: read the ingredients! Issues I am talking about are with O2 sensors and catalytic converters, not electrical connectors. I thought that was clear.

 

I think I've had a couple of smaller tubes of that stuff for some thirty years. Extremely stable apparently. In a pinch, I wouldn't hesitate to use it instead of explictely dialectric grease. Except, for salt water marine applications, would use only products specifically for that. Oh, wait, many of our cars are soaked in salt water in the Winter…

I think Donbrews warnings about silicone are apt. The stuff is amazing but under certain circumstance can cause nightmares. Paint problems in particular.

 

Thanks again geg. I have ruled out algae, mold or any other living organism.

Here's my concern with using ANY grease, compound or gelatin:
Some of these items are created with additives to not only "seal" or "protect" electric or electronic connections but they also create better conductivity to the connections.
I am afraid that a grease might hinder a good connection and , at the same time, I am concerned that a product designed to seal and improve a connection may create conduction of all 4 pins of the connector. I like the product Bonez showed. But its so old that it was probably pulled off the market by some activist somewhere who claims that if it's applied to the mangamanga bird in Tootitumi during the full moon cycle on a Thursday they might not be able to migrate to their ground nests and the species will die.

Meanwhile; I took the car out around town today and it did very well.
I stopped by my friend (he's a mechanic) and he did the white rag test; wiped everywhere around the area to find any sign of any leak or green liquid.

Since I bought this car, (my first full computer modulated car) I have had endless trouble with the various mechanics who worked on it. One important thing I learned; There are a lot of B mechanics out there calling themselves "masters". The only thing THOSE mechanics "mastered" was "baiting" people into spending money. They are true "master" "baiters". Thanks to them I decided to learn the car myself. Why not? I restored a 65 Lincoln and a 59 Caddy completely all by myself. Why was I afraid of computers? Because B mechanics (master baiters) would always intimidate me with fear that I would damage the car's computer and it would blow up.(I did that to the TCM. It wasn't so bad.) Once everyone deemed the car "junk" I decided I would have my own hand at it and I have kept the car going another 5 years even if I have to replace the o2 sensor every month. It's an easy fix and it's a lot cheaper than the interest rates of a new car.

They burden me with statistics that the sea level rose 8 inches in the past 140 years and the temperature increased 1.4 degree F in the same span of time.
Big deal. My toilet rose over 8 inches flooding my bathroom in just a few minutes and my AC broke raising the temp in my house over 30 degrees in an hour.

Are fish dying? I hope so. I would hate to think the one I ate tonight was still alive..

The cows may be farting out gasses that upset the ozone but the smell of their manure and urine upsets me.

EVERY food has been deemed bad for our consumption except Soilet Green..

 

If you read the wiki link you will find out how dielectric grease improves conductivity. Short answer is it polarizes so the part that causes corrosion is blocked.
After thinking about it a bit, All dielectric contains silicone since it is a semi-conductive material. The actual difference is that some are really RTV.
Still, avoid the possibility of getting silicone anywhere near O2 sensors or catalyst. The sealant that comes with O2 sensors is actually glass beads that melt in the high heat of the exhaust and flows into the voids. (I guess that makes it "made with silica", notice silicon vs silicone vs silica) Maybe I used the wrong words.
https://streampeak.com.sg/minerals-m...a-vs-silicone/

 

Define information and on the borderline of beating a dead horse!

on my two HHR’s the thermostat housing and the heater hoses pass over the wires for the O2 sensor, check for leakage from that area on to the O2 harnesses

 

yup and when others said "connectors" you said itll ruin O2 sensors ( how when its on the connectors, not the fitting/flange ? Just so you are very clear.

 

I was forgetting that the sensors on the HHR have a pigtail.