So why do we want to use the grease in the first place? Well, grease will act as a barrier to limit water penetration and corrosion. So why dont we use just any old white grease? Well, a conductive grease would cause trouble as it would create a short between the electrical contacts. Solution: use a non conductive grease. But by definition a non conductive grease is an insulator (ie. Limits the flow of electricity). Cant this lead to other problems if it is introduced into the circuit that you are trying to connect? Yes, if this grease gets crammed between the male and female electrical connector (for example with an injector) it can absolutely act as a insulator and lead to the exact same symptoms/problems as a corroded contact (corrosion basically acts as an insulator as well). So how do I use it properly? Solution: on injectors in particular, use "enough" to form a moisture barrier and seal the connector, but don't "pack it" like a wheel bearing. If the female end has to "scrape it off" the male end when you plug plug them in then you are using too much. Remember: Whatever does not "scrape off" is acting as an insulator, and is therefore REDUCING the effectiveness of your electrical connection. I hope this helps
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