This is the latest UOA on my Ecoboost. Truck now has 28,114 miles and this OCI had 4736mi. It is less miles than my previous OCIs but it was in the truck since December 2012 and had over 132hrs on this oil. There was a lot of idling and about 1500mi of 4x4 use from winter use. I also pulled a trailer a few times this summer with it. My OLM was 20%. To me the oil held up great even after being completely ruined by this engine. The low flashpoint would point to there being more fuel than reported. This oil starts out at almost 11cST and was down to about an 8. Overall the wear looked great for the use. Theres nothing here thats saying I couldn't have gone longer even though the oil specs were low but yet were better than some of my previous runs. The TBN still had some life left, while the oil had bad specs, it was not condemned yet. Now while I know all of that, emotionally, I don't know if I like the thought of running the oil that long in this engine with it out of specs that long, even though there's not evidence of it hurting anything. I'm not sure if I'll run it down to 20% again. I might just change it out after winter because of all the excess idling and harder use. This does go to show though, even though my miles were less, the hours on the engine were higher so the engine was actually run longer than the previous OCIs.
I also switched out the factory MC air filter with a carquest premium air filter. It was pretty dirty due to road construction close to my house.
The last three are kendall FS and the very first one was MC synblend.
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I also switched out the factory MC air filter with a carquest premium air filter. It was pretty dirty due to road construction close to my house.
The last three are kendall FS and the very first one was MC synblend.
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