Syntec 5W40, 74K, 9.1K OCI, 2004 BMW 325Cic

[petemo94]

Whats really strange is the oil I used (Castrol Syntec Edge 5W40) had a strange GREEN coolant color to it. Then when I bought the EXACT same oil 8 months later, the GREEN color was not there (it looked like normal oil).

The UOA was done on the coolant-colored oil.

Any know why the 2 identical oils looked drastically different?

Code:


MAKE/MODEL: BMW 2.5L (M54) Inline 6-Cylinder OIL TYPE & GRADE: Castrol Syntec 5W/40

FUEL TYPE: Gasoline (Unleaded) OIL USE INTERVAL: 9,082 Miles



When comparing this sample to universal averages, which show typical wear for this type of

engine after about 6,500 miles, we can see that most metals read fairly close after a longer oil run. Copper

was the odd ball, showing some wear at brass/bronze parts like bushings and bearings. At this point, we're

not ready to make any hard and fast calls since we aren't sure which direction it's headed. If it improves by a

couple ppm, it'll be in the green, so we'll see where it goes next time. Physically, the oil held up well & oil





MI/HR on Oil 9,082

MI/HR on Unit 75,400

Sample Date 10/31/13

Make Up Oil Added 0.75 qt



ALUMINUM 2

CHROMIUM 0

IRON 9

COPPER 19

LEAD 4

TIN 0

MOLYBDENUM 12

NICKEL 0

MANGANESE 1

SILVER 0

TITANIUM 0

POTASSIUM 3

BORON 48

SILICON 3

SODIUM 6

CALCIUM 2568

MAGNESIUM 27

PHOSPHORUS 844

ZINC 992

BARIUM 0



Pete M.
2004 BMW 325Cic with 77K miles

 

[nepadriver]

The green oil was probably older stock. They changed that a few years back. Do you still have the empty bottles to post pics of them?

 

[petemo94]

Sorry - did not keep them around. Filled them with the old oil and recycled the oil/bottles already.

Any idea if it was SH? SJ? specs? Just curious when this stuff went out of existence?

I changed the oil back in December 2012.

 

[fdcg27]

Where's the rest of this UOA?
Viscosities, fuel, water, and isols.?
It looks pretty good for 9K.
An oil cooler would explain the highish copper.
It isn't bearing metal, because lead is low.

 

[nepadriver]

GC was SL and is still made, you sure old oil wasnt 0w40?

 

[Quattro Pete]

Originally Posted By: nepadriver
The green oil was probably older stock. They changed that a few years back.

You sure you're not confusing it with GC?

GC was in fact green many many moons ago.

Syntec 5w-40 historically was never green; however, very recently someone else noted that the latest batches became green.

 

[71Chevyguy]

I have about 5 quarts left of 5w40 that is green as antifreeze so there was some green out there.