Thread: ('11-'14) FB20 Oil Analysis Thread
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Old 07-23-2012, 06:36 PM   #26
Scooby Newbie
Member#: 319378
Join Date: May 2012
Chapter/Region: MWSOC
Location: West Central MN
2012 2.0i Sport Ltd.
Satin White Pearl


Here's my analysis after first oil change at 4,025 miles, and no more gentle than recommended break-in.

Element Actual PPM / Typical PPM

Aluminum 5/2
Chromium 0/1
Iron 24/7
Copper 152/5
Lead 1/5
Tin 4/1
Molybdenum 927/53
Nickel 1/0
Manganese 10/4
Silver 0/0
Titanium 0/0
Potassium 3/1
Boron 163/44
Silicon 306/10
Sodium 8/15
Calcium 1783/2187
Magnesium 11/266
Phosphorus 784/771
Zinc 905/937
Barium 6/0

Result / Should Be

SUS Viscosity @ 210F: 48.6/46-56
cSt Viscosity @ 100C: 6.84/6.0-9.4
Flashpoint 405F/>385F
Fuel % <0.5/<2.0
Antifreeze % 0/0
Water % 0/<0.1
Insolubles % 0.2/<0.6

Comments: High wear and silicon are common finds in new engines, such as your new Impreza. The excess wear metals are from new parts breaking-in while silicon is from sand-casted parts and sealers used when assembling your engine. Both should improve with subsequent oil changes. Universal averages for this type of engine are based on an oil run of ~4,200 miles. With a few more oil changes your wear should read at or below universal averages. Subaru makes nice engines, so this should be a good one for you. No contaminants or problems found.
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Last edited by Haunty; 07-24-2012 at 01:27 PM.
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