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CJ-4 Engine Oil
Posted by Justin from Marietta, GA, US on May 29, 2008
Can the new API CJ-4 engine oil, designed for ‘07 complaint engines, be used in older engine models? What benefit can the new CJ-4 oil blend provide for older engines? Longer drain intervals? More wear protection?
The API CJ4 engine oils are the most robust engine oils that the heavy duty market has ever seen, they have been boosted in many ways to ensure that they exceed the performance of previous lubricants, particularly in the areas of soot handling, wear and oil consumption. They are fully compatible with engines of all generations. Using a CJ-4 oil in a pre 2007 engine will give the benefits of reduced wear, oil consumption, deposit formation, and could certainly allow extended drain to be reached. However extended drain should only be carried out in conjunction with a used oil analysis programme (such as castrolLab Check) to ensure that the lubricant is not being stretched too far.
