Supertech FS HM 0W20 VOA

[himemsys]

Disappointing TBN. Viscosity is also thinner than I’d hoped. Additive pack is identical to the 5W-20 I posted a month or two ago but TBN is way lower and viscosity is significantly less than the 5W-20.

 

[The Critic]

Disappointing TBN. Viscosity is also thinner than I’d hoped. Additive pack is identical to the 5W-20 I posted a month or two ago but TBN is way lower and viscosity is significantly less than the 5W-20.

Higher isn't necessarily better.

 

[bbhero]

It's the different ASTM test that Blackstone is using... That's the difference. The ASTM D2896 testing method would yeild a higher TBN test result.

 

[Hall]

Not enough moly Won't use it 'cause I heard moly is good but I don't know why, but I still won't use it /s

 

[himemsys]

It's the different ASTM test that Blackstone is using... That's the difference. The ASTM D2896 testing method would yeild a higher TBN test result.

No. The 5W-20 I tested was also from Blackstone. It got 6.9

 

[IndyFan]

The real test will be TBN after someone lays 10k on a sample. Then we'll see how it is trending toward the 20k claim.

 

[himemsys]

The real test will be TBN after someone lays 10k on a sample. Then we'll see how it is trending toward the 20k claim.

This is the high mileage that’s rated for 10k.
The 6.1 TBN is 11.6% lower than the 6.9 that the 5W-20 of the same oil got.

 

[bbhero]

No. The 5W-20 I tested was also from Blackstone. It got 6.9
[/QUOTE/]

I'm not trying to give you a hard time here. Not my intent at all.

The other different ASTM test would give a higher TBN..... On BOTH oils you had tested aka ASTM D2896.. Instead of the D 4739 test done by Blackstone.


If Blackstone used the one the PQIA uses ASTM D2896 then both of tests would have had higher TBN results... Quite likely 8.0+....

 

[bbhero]

You know that's why those results are seemingly "low".

In reality the test result is not low.

And with the addition of magnesium... The recent UOAs on here all seem to indicate that TBN retention is much better with mag and calcium vs high high calcium like 2,400 ppm plus and zero mag.

 

[CharBaby]

Here's the PQIA's testing from 2/13/2020 on the SuperTech FS HM 0W20 for comparison.
https://pqia.org/super-tech-sae-0w-20-high-mileage-full-synthetic-motor-oil/

 

[wemay]

Here's the PQIA's testing from 2/13/2020 on the SuperTech FS HM 0W20 for comparison.
https://pqia.org/super-tech-sae-0w-20-high-mileage-full-synthetic-motor-oil/

Using ASTM D2896
Stout oil by any measure.

 

[himemsys]

You know that's why those results are seemingly "low".

In reality the test result is not low.

And with the addition of magnesium... The recent UOAs on here all seem to indicate that TBN retention is much better with mag and calcium vs high high calcium like 2,400 ppm plus and zero mag.

My point was that both the 5W and 0W were tested by the same lab using the same D4739 method, yet the 5W is 13ish% higher. When I said I was disappointed in the low score I wasn’t talking about it’s absolute value. I meant in relationship to the 5W version. 13% is well beyond margin of error and you’d likely see a similar difference if both oils were tested under the D2896 method. That’s all I meant by that.

 

[himemsys]

Using ASTM D2896
Stout oil by any measure.

D4739 is the preferred method if you will be doing a UOA on the same oil as the virgin and used values will be more directly comparable.

 

[RDY4WAR]

There's a wide margin of error with TBN. I've had the lab rerun a sample and the TBN came back 2 full numbers different. Don't put too much weight on it.

Also, this is Blackstone. They don't exactly have a good track record of being accurate. (consistent low reporting) I haven't used them in years.

 

[himemsys]

Here's the PQIA's testing from 2/13/2020 on the SuperTech FS HM 0W20 for comparison.
https://pqia.org/super-tech-sae-0w-20-high-mileage-full-synthetic-motor-oil/

That is the SN+ version. I wonder how comparable TBNs are between SN+ and SP.
Edit - not just TBN. How comparable any of the characteristics are.

 

[himemsys]

There's a wide margin of error with TBN. I've had the lab rerun a sample and the TBN came back 2 full numbers different. Don't put too much weight on it.

Also, this is Blackstone. They don't exactly have a good track record of being accurate. (consistent low reporting) I haven't used them in years.

Thanks. Your post encouraged me to request a retest of the TBN.

 

[Dogman]

There's a wide margin of error with TBN. I've had the lab rerun a sample and the TBN came back 2 full numbers different. Don't put too much weight on it.

Also, this is Blackstone. They don't exactly have a good track record of being accurate. (consistent low reporting) I haven't used them in years.

What is a better option?

 

[bbhero]

My point was that both the 5W and 0W were tested by the same lab using the same D4739 method, yet the 5W is 13ish% higher. When I said I was disappointed in the low score I wasn’t talking about it’s absolute value. I meant in relationship to the 5W version. 13% is well beyond margin of error and you’d likely see a similar difference if both oils were tested under the D2896 method. That’s all I meant by that.

My point is.... That nominal difference is meaningless.

6.1 percent using the ASTM D4739 is just fine... Versus 6.7 is not a huge difference... It's not in reality. And if both oils were run for say 5k miles.... It would be just fine.

Using the other ASTM D2896 those results would be likely 8.0+.

Plus those oils with magnesium... Will maintain higher TBN for longer. Even if one could be 13 percent lower.

Sometimes numbers and percentages may have significant meaning... And sometimes they don't.

If one oil was 5.0 and the other 6.9.... Then in my opinion that would be worth looking into more seriously.

 

[himemsys]

My point is.... That nominal difference is meaningless.

6.1 percent using the ASTM D4739 is just fine... Versus 6.7 is not a huge difference... It's not in reality. And if both oils were run for say 5k miles.... It would be just fine.

Using the other ASTM D2896 those results would be likely 8.0+.

Plus those oils with magnesium... Will maintain higher TBN for longer. Even if one could be 13 percent lower.

Sometimes numbers and percentages may have significant meaning... And sometimes they don't.

If one oil was 5.0 and the other 6.9.... Then in my opinion that would be worth looking into more seriously.

I appreciate your point of view.

 

[Brons2]

What is a better option?

Polaris
Oil Analyzers
NAPA

...off the top of my head.