Can engine manufacturers require oil changes in order honor their warranty?
No! Engine oil change intervals are “recommended” by most manufacturers for warranty purposes. Only the condition of the oil needs to meet minimum manufacturer specifications during the warranty period. The puraDYN® System insures that the oil continuously exceeds these minimum requirements. Manufacturers should honor engine warranty claims as long as accurate and periodic oil analysis reports are taken at the manufacturer’s recommended oil change intervals (or sooner) stating that the oil is suitable for continued use and that the additive and viscosity levels are deemed acceptable.
