Delvac 1 5w-40 - Detroit Diesel Series 60 DDEC4 500hp@1800rpm - 8

[Doug Hillary]

Detroit Diesel Series 60 - DDEC4 500hp @ 1800rpm
Vehicle used on line haul high speed long distance work
Oil = Mobil Delvac 1 - 5w-40 CH-4/SJ
Total sump capacity = 38 litres
Distance on engine = 969727 kms
Distance on oil = 20077 kms
Distance on 2xFF Donaldson ELF3998 filters = 20077 kms
Time on oil & filters = 1 month
Temperatures in period = Low of 18C to High 45C
Top up oil required = nil

Note;
the first column is another Lab's report at 929000km with the oil having done 90000kms
the second column is the UOA at OC point with the oil having done 110227kms
the third column is the current sample - details above - oil having done 20077kms

Viscosity @ 40C 125 - 151 - 90
Nitration Abs/cm 43 - 76 - 21 our limit 60
Soot Index 7.8 - 3.6 - 2.9 our limit 4
TBN D4739 5.7 - 3.6 - 6.3 DD limit 1
PQ Index 25 -
Iron 129 - 150 - 42 DD limit 150
Aluminium 2 - 3 - 2
Chrome 5 - 6 - 2
Copper 9 - 10 - 4 DD limit 30
Lead 123 - 150 - 19
Silicon 11 - 12 - 6
Sodium 9 - 6 - 7
Water
This oil was NOT changed at this Sample point

I welcome your comments

Regards

 

[Rand]

Wow. I'm impressed. even with those being km... 100000km is what close to 60000 miles??

Rand