Folks,
In case anyone is interested, here is the first Blackstone report on my Dak.
Miles on oil: 3151 miles
Miles on engine: 6327 miles
Comments: This is probably the second oil in the engine, so nothing would
suprise us much in the way of wear and contaminantes. Copper, lead and tin
may all be from bearings, and these would be high readings if the engine was
past wear-in. So too would silicon be high for a mature engine. In this case
it may be from factory left-overs, like casting sand or sealers used in the
build-up. Check back later after wear-in. Bearing metals and silicon should
drop significantly.
Element PPM Universal Averages
============================================
Aluminum 3 11
Chromium 1 4
Iron 38 67
Copper 53 94
Lead 49 35
Tin 14 8
Molybdenum 25 20
Nickel 1 1
Manganese 2 3
Silver 0 0
Titanium 0 0
Vanadium 0 0
Boron 28 33
Silicon 87 45
Sodium 6 50
Calcium 787 452
Magnesium 859 748
Phosphorus 775 843
Zinc 1035 1017
Barium 5 1
SUS Viscocity @210F: Should be 55-61 was 57.0
Flashpoint in F: Should be >360 was 430
Fuel %: Should be <1.0 was <0.5
Antifreeze %: Should be 0 was 0
Water %: Should be <.05 was 0
Insolubles %: Should be <.6 was .5
I'm not a chemist but it looks like things are right on track for an engine
with only ~6000 miles on it.
Anyone want to start the Silicon/Silicone debate again <g>?
Roger
'98 SLT CC 4X4 Light Driftwood 5.2 Auto
Pioneer DEH-P86DHR
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:13:03 EDT