Snap, Crackle, Pop: Do Your Engine Oil Testing at No Cost
The article below will describe for you one of six incredibly valuable engine oil tests that you can use to quickly evaluate the condition of your oil, without ever paying a single dime to an oil analysis lab.
The crackle test is valuable for determining whether water build-up from condensation problems is an issue. Typically, you’ll be most susceptible to water in your motor oil if you are a short trip driver and/or if your vehicle’s engine is started only on occasion.
Of course, it would be reasonable to wonder why you would need to check for water ingression, and the answer, to put it simply, is that, water build-up leads to acid build-up. Acid build-up leads to corrosion, and pitting is caused by corrosion. Pitting is BAD, and, even a premium, extended drain synthetic oil like AMSOIL can eventually be overcome with water/acid build-up. So, you should perform a crackle test to find out if water is building up in your oil BEFORE acid build-up depletes the acid fighting additives in your oil and corrosion begins.
However, if performing the blotter spot test prior to the crackle test shows that there is fuel in your motor oil, performing the crackle test will likely be of little use, since the fuel in your oil will skew your results. This is the reason that the blotter spot test (business card test) is generally performed BEFORE the crackle test. If there’s fuel in your oil, you may already need to change out your oil, and the results of the crackle test will not be clear anyway.
So, what do you do? Easy. Find a hotplate of some kind. Set it to a temp between 250 and 300 degrees F . Then, place a few drops of oil on the plate.
At that temp, when you place the oil on the hot plate, you will hear a crackle as the water boils off. You should hear it very quickly as long as you use only a small amount of oil. Of course, if there is no water in your motor oil, you will hear no crackle.
Paying for a professional oil analysis will tell you not only IF water has contaminated your oil, but also how much contamination has occurred. Nevertheless, even though the crackle test is not quite as informative, it’s nice that you can use this DIY test to at least tell you if there is water in your oil.