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Discussion Starter #1 (Edited)
A while back people were wondering how an oil analysis of
Motul 8100 x-clean EFE 5w30 would look.


Well last fill I changed from Eneos Sustina 5w30 (after 2 fills) to the Motul.


The Motul was run for just over 3K miles. With a couple of big mountain road trips (lots of mountains, lots of passes of other vehicles and high altitude at highway speeds).


So just about as abusive as I get on my STI.


I guess I am fairly pleased. Got rid of the viscosity drop I saw on both the factory fill as well as the 2x Eneos fills. Didn't add a drop of makeup oil (burned maybe .1 quarts according to the thing that Subaru thinks is an accurate dipstick). Filled again this time with Motul.



Here is the report: Oldest is the factory fill, next 2 are the Eneos Sustina, last is the Motul.

 

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Nice. Gotta love Motul.
I moved over to X-Cess 5w40 until summer and all competitions end, then I'm switching back to X-Clean EFE 5w30 for mid-fall/winter duty.
 

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Am I looking at this right??? last one is motul.. look all the way down to cST Viscosity @100*C = 7.90!!!! that means the 5w30 hella sheared to 5w20.. some 1 correct me if I am wrong?
 
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