'94 Grand Am GT GM Cold Climate PSF 11697 OCI

[benjamming]

Previous oil used had been Red Line. The turkey baster method had been used until near 100% RL PSF was achieved. The same applies with the GM fluid until the indicated 56% of the subject oil has been achieved. There is no filter on this car.

I'm not sure why they provided TBN instead of TAN.

Code:
Oil used GM Cold Climate

Sample Date Jul-3-2009

Miles on oil 11,697

Miles on car 192,318

Make-up oil None

Filter N/A

% Tested Fluid 56

TBN: 4.3

Aluminum: 0

Chromium: 0

Iron: 74

Copper: 45

Lead: 33

Tin: 2

Molybdenum: 2

Nickel: 0

Manganese: 3

Silver: 0

Titanium: 0

Potassium: 5

Boron: 59

Silicon: 18

Sodium: 4

Calcium: 1567

Magnesium: 37

Phosphorus: 1279

Zinc: 1290

Barium: 1

Viscosity: 5.53

Flashpoint: 395

Fuel: -

Antifreeze: -

Water: 0.0

Insolubles: 0.0

 

[AzFireGuy79]

One question. WHy in the world did you drain the RL for GM PSF?

Cause im quite confident the RL has better cold flow properties so that can't be why.

 

[benjamming]

convenience

 

[AzFireGuy79]

Oh, ok I will forgive you then

It can be a PITA to get indeed. How do you like the GM stuff so far?

 

[benjamming]

It's difficult to tell since there are small step changes due to the turkey baster method. It's basically a 50/50 mix right now. In other words, nothing drastic - no suprise there though.

 

[unDummy]

I'd love to see a VOA of both.

150ppm of wear/tear makes you wonder why psf filters or maintenance intervals aren't required by most automakers.

This is one reason why I siphon/refill once at every oil change. To remove ANY amount of the wear and top off with fresh clean fluid prevents me from ever having to change out the pump.