Can it be added to a system using DTE 68

Thank you for your question regarding the Mobil Univis N 68.

Yes, the Mobil Univis N 68 can be mixed with Mobil DTE 26 Ultra, as both are mineral-based hydraulic oils of the same viscosity grade (ISO VG 68). However, we do recommend only doing so if the quality of the oil currently in your system is still good — i.e. not degraded, contaminated, or due for a change.

If the existing Mobil DTE 26 Ultra (ISO VG 68) is approaching the end of its service life, we would advise draining and flushing the system before filling with Mobil Univis N 68 to get the full benefit of the new oil.

Should you have any further questions, please don't hesitate to get in touch.