AlexPeterson
Well Known Member
Wikipedia defines "total acid number", TAN, to be the amount of potassium hydroxide in milligrams that is needed to neutralize the acids in one gram of oil. In other words, it indicates how acidic the oil is. Obviously, the more acidic the oil is, the more corrosion that will happen. The analyses of my oil typically run around .6 to 2.0.
I'm curious if there is a generally accepted limit for recip aircraft engines. I could imagine a lower limit for infrequently flown airplanes, higher for frequently flown, but I don't know.
I'm curious if there is a generally accepted limit for recip aircraft engines. I could imagine a lower limit for infrequently flown airplanes, higher for frequently flown, but I don't know.