Oil Viscosity-EB

[Red13Sport]

Second oil change in the Sport at 9500 miles.
5W30 Mobil 1 is 200 Sabolt Seconds on our gauge.
The 5W30 Mobil 1 drained out at 7000 miles measures 140S/S.

First oil change at 2500 miles, the original oil measured 170 S/S which caused me to think the factory fill was thinner than the recommended 5W30.

IMHO this is due to fuel dilution.

BTW 0W20 Mobil 1 measures 150S/S when poured from the bottle.
Best, Red13Sport

 

[Ryan327]

All the oil tests I've seen over on another site for the 3.5 ecoboosts shows fuel dilution to be a possible issue. I'm planning on changing mine at 5k intervals for now. I find it cheap insurance over pushing it further, especially since I do tend to make a lot of short trips and drive under city conditions most of the time.

 

[Red13Sport]

This is mostly highway miles,,the average is 20.4 MPG so I'd think she's not running that rich. Blacks the pipes when you play with her
The oil life was still 31% at 7000 miles.

Ya know Ryan the 50W we used to race with measures 1200 S/S