Ive never had to clean my terminals. Id seen some nasty battery terminals in my days and they are always on other peoples cars.
Me, I add extra grounds. I go from shock tower to shock tower, inner fender, engine, tranny, alt as well as one to the negative battery terminal.
I took the idea with a grain of salt. I purchased a roll of wire and some terminals from the auto store to test it since I had some money and time. Afterwards I notice the engine starts faster. The head lights are brighter. The radio seems clearer. THe engine doesnt vary in idle as the ac cycles off and on. Throttle response is improved.
I was shocked at the results and did it to my other vehicle. Similar results, so I continue doing that to this day.
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