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Old 05-31-2007, 10:50 AM   #1
bluesubie
Scooby Guru
 
Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

Thumbs up Motul 8100 5W30 Used Oil Analysis - 5900 mi.- FXT

I switched from German Castrol (GC) to Motul 8100 5W30 for winter to see if it would help with fuel dilution due to my short daily trips since it is a thin 30 weight oil (9.9 cst's at 100C). It did.

I thought that it might shear to a 20 weight since it's so thin, but it stayed in grade and still has plenty of life left. Look at the viscosity at 210F and you can see that this is thinner than GC. UOA by Blackstone and oil was in use December 23rd to March 6th. The oil is still in and I'm not sure what I'll be running when I change it.

Code:
Current; gold GC @ 7,000; gold GC @ 7,478; gold GC @ 6,144; green GC 
@ 5,930; M1 5W30 @ 5,774.

Equipment make: Subaru
Equipment model: 2.5L Turbo
Oil use interval: 5,900
Oil type & Grade: Motul 8100 Eco-nergy 5W30
Make-up oil added: .25 qts.
Miles on unit: 51,650
Air filter: OEM
Oil filter: OEM

Dennis: Sodium dropped again, and wear looks terrific. 
The TBN read 4.8, still plenty of active additive left in the oil. We’re glad 
to see that you haven’t changed this oil yet. It still has plenty of life left 
in it. No fuel or antifreeze found. Add another 2,000 or 3,000 and check 
back. If wear still reads low, you may not even need to change it at 
that point.

Aluminum 4 5 4 4 4 6 
Chromium 1 1 1 1 1 1
Iron 11 12 16 11 10 15 
Copper 6 8 7 10 6 20 
Lead 2 3 3 3 2 2
Tin 0 1 0 1 0 0
Molybdenum 3 2 9 4 12 63 
Nickel 0 0 0 0 1 0 
Maganese  0 1 0 0 0 0 
Silver 0 0 0 0 0 0 
Titanium 0 0 0 0 0 0 
Potassium 0 2 0 0 0 3 
Boron 1 0 0 1 14 115 
Silicon 14 13 15 15 18 
Sodium 11 19 18 6 2 6
Calcium 1252 1783 2165 1689 2582 3394 
Magnesium 953 530 436 398 106 10
Phosphorous 932 796 816 754 680 764 
Zinc 1025 974 1011 909 818 904
Barium 0 0 0 0 0 1 

Properties
SUS Viscosity @ 210F: 58 66.2 66.4 64.4 64.8 57.8  [56-63]
Flashpoint: 370 380 380 385 365 395 [>365]
Fuel %: .5 TR 2.3 .5 1.0 .5 [<2.0]
Antifreeze: 0 0 ? 0 0 0 [0]
Water: 0 0 0 0 0 0[<0.1]
Insolubules: .3 .4 .2 .5 .4 .5 [<.6]
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