jordan15screw

has anyone done a oil analysis on a 2.7 running motorcraft semi syn at the 10,000 mile interval and been told its to long.

gamason

NOt me, but its highly doubtful. Todays oils are engineered for extended drain intervals!

Napalm

unless under some extreme duty I would suspect not.


but I don't know. I've not run my oil that long yet, and I don't know if my percentage would get to 10K miles.

As of this last run I am at 43% and it's got about 5400 miles on it since last change.

engineermike

They can certainly engineer in certain things, like soot dispersants and caustic components, that will extend drain intervals. However, some things you just can't account for in the formulation, like fuel dilution. gtdi engines are hard on the oil because of fuel dilution, soot, high shear loads, and high temps. This is partly why ford specifies heavier oil in the ecoboost engines than the na engines. I think a quality synthetic oil and uoa would be beneficial.

TheSolarWizard

Have you checked BobIsTheOilGuy.com ?

Eduskator

Did you get to 10k miles before your IOLM asked for an oil change?

jordan15screw

Im at 6600 and 32% i usualy change it at 6k but figure id see what the olm does this time

Axxion89

I did but with Mobil 1 Synthetic. Long story short everything was in spec including the oil. No issues at all. I'd say to trust what Ford engineers say and not what a bunch of anecdotal evidence on various forums say

jordan15screw

I was actually going to use mobile 1 on my next change ive always used it in any other car or truck ive had.

zx12-iowa

usually but not always... maybe its a trust but verify type of thing