Engine Oil, Quaker State, Blackstone Analysis

[CajunMick]

After 530 miles and 5 months since oil change, I decided to pull a sample of the Quaker State full synthetic oil to see what it looks like now. You know taste new coffee blend at early morning rise. And then pull another sample at maybe ~ 2,000 miles to check. It may take some time for the truck to reach this point since not driving it much. 530 miles in 5 months…..

The oil sample is Quaker State 5W-30 full synthetic. All the preceding samples were Motocraft oils, first of blend and later synthetic kinds. Their sampled results revealed not too encouraging numbers, especially the viscosity numbers. And sampled reports of shearing. After some research, found the QS specification has higher viscosity ranges than what Motocraft oil post in their specifications.

Anyway, the sample analysis report. This time I requested a TBN number, out of curosity.

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[Tbone289]

I'm also running QSFS on this OCI due to it's higher initial viscosity and the tendency for mine to show some fuel dilution and shearing, so I was very interested in your results when I saw the thread topic with QS. I've used it many times in the past and trust it.

To be honest, your numbers aren't very meaningful to me in comparison to your other runs (or mine) due to the very low mileage on this analysis. The only thing that is clear to me from this analysis (based on TBN and flashpoint) is that you should leave it in there for a normal run. It is interesting that cSt viscosity is already down to 9.67 when I believe it is in the low 11s out of the bottle, but clearly not a concern with TBN and flashpoint as high as they are. Your wear metals are looking really good too.

Anyway, thanks for the share, any data is good data.

 

[CajunMick]

I'm also running QSFS on this OCI due to it's higher initial viscosity and the tendency for mine to show some fuel dilution and shearing, so I was very interested in your results when I saw the thread topic with QS. I've used it many times in the past and trust it.

To be honest, your numbers aren't very meaningful to me in comparison to your other runs (or mine) due to the very low mileage on this analysis. The only thing that is clear to me from this analysis (based on TBN and flashpoint) is that you should leave it in there for a normal run. It is interesting that cSt viscosity is already down to 9.67 when I believe it is in the low 11s out of the bottle, but clearly not a concern with TBN and flashpoint as high as they are. Your wear metals are looking really good too.

Anyway, thanks for the share, any data is good data.

Yes I am surprise too, given only 530 miles. I will keep oil and run it more. Then might consider a sample nearer the 5k mark.

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