- Nov 4, 2014
- Wichita Falls, TX
Fresh oil does not attack or wear away engine components. However, an interesting SAE study showed that the detergents in fresh oil will wash away the tribochemical film that forms on bearing surfaces. The study was based on a small vehicle fleet, with oil change intervals that varied between 3,000 and 15,000 miles. Basically, aged engine oils provide less friction and considerably lower wear than fresh oil. https://www.sae.org/publications/technical-papers/content/2007-01-4133/That's an idea. I had on my mind that when an engine receives fresh engine oil regularly that the oil ends up attacking/wearing away certain components within the engine.