Sending in a sample before the warranty (or extended warranty) runs out is well worth the $25. Have had several cases where oil analysis showed problems which were fixed under warranty at little/no cost--and would have been very costly a few months later.
Before purchase of a used car (if possible).
In new diesels to see if there is fuel dilution enough to cause premature drains.
In truck diesels to see if oil change interval can be extended--cost of test is considerably less than the cost of 16 quarts of good synthetic oil. Not so much in a 4-5 qt system.
Before purchase of a used car (if possible).
In new diesels to see if there is fuel dilution enough to cause premature drains.
In truck diesels to see if oil change interval can be extended--cost of test is considerably less than the cost of 16 quarts of good synthetic oil. Not so much in a 4-5 qt system.
