Originally Posted By: zeng
OLM appears not reflecting actual oil condition.
I agree, it is a simple mileage/time counter it varies very little to not at all based on usage.
Originally Posted By: zeng
Metal wear rates trending downwards and normal with used oil within serviceable condition.
Seems to be doing fine.
Originally Posted By: zeng
OCI could have been extended further, IMHO.
It is a fleet vehicle, the oil changes are mandated at 5000 miles. But I agree absent that I'd be comfortable extending it to 7500, even with the varied use and often high idle times.
Originally Posted By: zeng
Btw,OP were all previuos oil samples similar?
From an oil and filter standpoint - yes except for the 14,954 one which was Mobil 1 and an Ultra.. With respect to usage - sort of. They are all here but a quick recap of use:
01/21/2016 - 4978 miles, 289hrs running, 191hrs idle
03/16/2016- 10,042 miles, 645hrs running, 445hrs idle (356/254)
05/16/2016 - 14,954 miles, 891hrs running, 596hrs idle (246/151)
06/27/2016 - 20,270 miles, 1070 hrs running, 681hrs idle (179/85)
11/07.2016 - 24,991 miles, 1292 hrs running, 805 hrs idle (222/124)