Rinse flushing is a best practice for any oil change to completely remove old, degraded oil from all parts of the system, particularly when any of the following conditions exist:
- Prior to cleaning, the in-service oil was experiencing rapid oil degradation or was extremely degraded,
- Prior to cleaning, there were severe deposits in the system,
- More than 10% of the oil-cleaner mixture remains after draining.
Complete draining of all the old oil and cleaner mixture, including trapped mixture, helps mitigate the negative impacts on new oil performance and can reduce the need for flushing.
VARTECH ISC was formulated to be highly compatible with modern high-quality lubricants to minimize the risks of an incomplete drain or rinse.