Quaker State Ultimate Protection Viscosity Accuracy

[FMC]

its stated on the Technical Data Sheet that 5w30 viscosity @100c is 11.7

Do you think this is correct ?

https://www.shell-livedocs.com/data/published/en/d3a5f5df-85c5-4d48-b076-bca08bbfaec6.pdf

 

[kschachn]

For a sheet of typical values, sure.

 

[ZeeOSix]

Why wouldn't it be correct. It's measured per industry standards.

 

[FMC]

I find it suspect based on other shell products of 5w30

 

[ZeeOSix]

Not all 5W-30 is the same, even from the same company. What's the KV100 of the other Shell 5W-30 flavors? How do you know those others are "accurate"?

 

[dwendt44]

Some oils are on the thin side of their 'weight' rating, others are on the thick end of
the specs.

My 2¢

 

[Dave P.]

Not all 5W-30 is the same, even from the same company. What's the KV100 of the other Shell 5W-30 flavors? How do you know those others are "accurate"?

Pennzoil Platinum 5W-30 is 9.8
Is it odd that they're both Shell products and both using GTL base oil and yet still a fairly large difference?

 

[MParr]

Who knows? That 11.7 Kv100 number has been around for a few years. I’ve noticed that other SP oils have a reduced Kv100 number than earlier SN numbers.
For what it’s worth, here is a VOA from an earlier thread.

Quaker State Ultimate Protection 5W-30

Got the sample back. Looks good for $23 bucks

bobistheoilguy.com

 

[TiGeo]

QA Euro 5W40 Euro tested about the same when I did a VOA.

 

[ZeeOSix]

QA Euro 5W40 Euro tested about the same when I did a VOA.

KV100 for xW-40 needs to be 12.5 cSt or higher, per J300. What was "about the same"?

 

[MParr]

QA Euro 5W40 Euro tested about the same when I did a VOA.

Your VOA showed 12.06 Kv100. The data sheet shows 13.3.

 

[TiGeo]

Your VOA showed 12.06 Kv100. The data sheet shows 13.3.

Ok thank you. That's what I was trying to say....it's close to this 5W30.

 

[MParr]

KV100 for xW-40 needs to be 12.5 cSt or higher, per J300. What was "about the same"?

Could there be a discrepancy between the tests and Shell’s posted numbers?

 

[ZeeOSix]

Ok thank you. That's what I was trying to say....it's close to this 5W30.

If your VOA KV100 was 12.06, then it was a "30" grade since it was between 9.3 and 12.5 cSt.

 

[ZeeOSix]

Could there be a discrepancy between the tests and Shell’s posted numbers?

Is the reference test method number the same? Who knows how accurate Blackstone tests are (?). I'd think a major oil company would have high end testing to determine their oil specs.

 

[MParr]

Is the reference test method number the same? Who knows how accurate Blackstone tests are (?). I'd think a major oil company would have high end testing to determine their oil specs.

Who knows? Shell’s product data sheets didn’t match the Blackstone tests in these two particular cases.

 

[SC Maintenance]

I imagine they have a tolerance? So long as they stay within the SAE 30 spec window I suppose they don't really have to update their sheets. In one of the Lake speed videos I watched he said +/- 1 was meaningless - his comment not mine?

If you want thicker why not bump up a grade?

 

[kschachn]

Is the reference test method number the same? Who knows how accurate Blackstone tests are (?). I'd think a major oil company would have high end testing to determine their oil specs.

No kidding.

 

[kschachn]

I find it suspect based on other shell products of 5w30

If you find it suspicious then inform SOPUS. It's the only logical answer. Tell them that even though their listed viscosity is well within the grade limit, you find it suspect.

Or just avoid this brand for one that is less suspicious to you.

 

[TiGeo]

If your VOA KV100 was 12.06, then it was a "30" grade since it was between 9.3 and 12.5 cSt.

Yes I am aware - the point was the QS in question seems thick for a 30 and my 40 was on the thin side/boardline...that's all I was getting at....that QS has some viscosity "anaomlies".