Subaru Impreza WRX STI Forums: IWSTI.com - View Single Post - Engine Motul 5w30 8100 x-clean EFE oil analysis
View Single Post
Old 08-13-18, 06:15 PM  
TheOtherDave
Advanced Contributor Level 2
 
Car: Red 17 STI Limited
Fav Mod: Plugged the engine to cabin sound tube
My Threads
Posts: 242
My Subaru Parts for sale

Join Date: Apr 2017
Location: Northern Colorado
TheOtherDave is on a distinguished road
Default Motul 5w30 8100 x-clean EFE oil analysis

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.


Last edited by TheOtherDave; 08-13-18 at 06:20 PM.
TheOtherDave is offline  
Likes 0 Dislikes 0
 
Reply With Quote