Diesel Engine Service Life
Heavy-Duty On-/Off-Road: Three times (3X) OEM1
recommendation, not to exceed 60,000 miles/600 hours or one
year, whichever comes first.
Turbodiesel Pickup: Two times (2X) OEM1
recommendation, not
to exceed 25,000 miles or one year, whichever comes first.
Competition Service Life: Provides lasting protection for
multiple events. Use oil analysis to determine appropriate drain
intervals.
Drain intervals may be extended further with oil analysis.
Note: Extended drain intervals are not recommended for performance-modified
engines, when using biofuels containing more than 10 percent ethanol or 15
percent biodiesel (B15) or for 2007-2009 Caterpillar* C13 and C15 on-highway
engines. Extend drain intervals beyond OEM recommendations in these instances
only with oil analysis. Note: 2007-2010 Dodge**, Ford** and GM** turbodiesel
pickups are also not recommended for extended drain intervals when using
Signature Series Max-Duty 5W-30 Diesel Oil (DHD).
1 Refer to your owner’s manual for OEM drain interval recommendations and
guidelines for severe and normal service.