Amsoil Signature Series 0w-20

[rstcso]

Although there are several VOAs for this oil on BITOG, I sent a virgin sample to Speediagnostix for VOA. Good to know it matches very closely to the latest VOA posted here from BS. Having seen wild swings between labs, and not seeing any from SD and planning on using them, I wanted my baseline to be from them.

 

[Urshurak776]

wow. 1306 Moly in that Honda OEM oil.

 

[Glenda W.]

Thanks! Was looking forward to this one!

No oxidation on SS?

 

[rstcso]

Thanks! Was looking forward to this one!

No oxidation on SS?

I just sent Lake an email about this and got an Out of Office, so may be a while before it gets fixed.

BS doesn't report oxidation. The latest VOA I found from Oil Analyzers shows 47.

 

[rstcso]

wow. 1306 Moly in that Honda OEM oil.

Now I want to grab a quart from the dealership and send for VOA!

 

[facility1]

the Amsoil looks stellar.

 

[rstcso]

Lake updated the report last night to include oxidation. Drum roll please... 48.3! My understanding is this is a high PAO/Ester blend.

 

[Glenda W.]

Lake updated the report last night to include oxidation. Drum roll please... 48.3! My understanding is this is a high PAO/Ester blend.

View attachment 284700

Thanks! Great base oil blend! Stout add pack on the SS as well.

My guess on the really high moly in the factory fill is assembly lube.

 

[JAG]

48.3! My understanding is this is a high PAO/Ester blend.

Virgin PAO’s oxidation should be zero or near zero, so the high value is mostly from the ester, and a minor amount from the additive package.

 

[buster]

Lake updated the report last night to include oxidation. Drum roll please... 48.3! My understanding is this is a high PAO/Ester blend.

View attachment 284700

Maybe even some GTL or mPAO. Hard to say. There were some MSDS a while back in Europe that showed some GTL. Noack is so low across the entire SS line so prob mostly PAO. The high oxidation value is definitely a group V POE of some sort. Sometimes they state using proprietary esters, being there are so many.

 

[Glenda W.]

Maybe even some GTL or mPAO. Hard to say. There were some MSDS a while back in Europe that showed some GTL. Noack is so low across the entire SS line so prob mostly PAO. The high oxidation value is definitely a group V POE of some sort. Sometimes they state using proprietary esters, being there are so many.

Should be interesting to see what the new revolutionary formula will be?

A 30k oci while cleaning pistons!! Although if running SS from day one I suspect you’d never have dirty pistons.

 

[Sienna dude]

Should be interesting to see what the new revolutionary formula will be?

A 30k oci while cleaning pistons!! Although if running SS from day one I suspect you’d never have dirty pistons.

30k OCI, seriosly?

 

[Glenda W.]

30k OCI, seriosly?

This was in reference to a new Amsoil SS formula coming out that’s going to be “revolutionary”. I was half joking but figured they’d not want to be the same as Castrol Edge EP at 25k.

 

[Glenda W.]

30k OCI, seriosly?

Here’s the post about the formula change.

Thread 'Amsoil SS & GF-7'

Jun 11, 2025

Per Amsoil Magazine:

"....Amsoil Signature Series is undergoing a revolutionary reformulation that promises to usher in the next generation of motor-oil technology."

For the XL, HM and OE - already meets or exceeds Gf-7 and SQ standards.

Just an FYI. I was curious if/when Amsoil was going to reformulate SS.

• buster
• Replies: 16
• Forum: Passenger Car Motor Oil (PCMO) - Gasoline Vehicles

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[himemsys]

Lake updated the report last night to include oxidation. Drum roll please... 48.3! My understanding is this is a high PAO/Ester blend.

View attachment 284700

Thanks, I added the Amsoil to the VOA Database. I wonder if SPEEDiagnostix has never included Titanium on their reports? I'm just noticing it's not on there. I know they don't include Silver, Barium or TBN.

 

[himemsys]

Thanks, I added the Amsoil to the VOA Database. I wonder if SPEEDiagnostix has never included Titanium on their reports? I'm just noticing it's not on there. I know they don't include Silver, Barium or TBN.

Replying to myself. I just found one of their reports where Titanium was between Manganese and Nickel:

R

Post in thread 'VOA Database'

May 15, 2024

Here's my VOA for Amsoil Dominator 10W-30

• RagnarokCamaro

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Did they decide to stop testing for Titanium, or is this a mistake on this report?

 

[rstcso]

Thanks, I added the Amsoil to the VOA Database. I wonder if SPEEDiagnostix has never included Titanium on their reports? I'm just noticing it's not on there. I know they don't include Silver, Barium or TBN.

In my latest communication with Lake, I asked why his molybdenum levels typically report significantly higher than Blackstone and Oil Analyzers. He said their lab uses RDE vs ICP.

 

[himemsys]

I found a SPEEDiagnostix report from as recent as May 2025 and Titanium is on there:

Thread 'Valvoline Premium Blue RESTORE 10w-30 Gen 2 VOA.'

May 19, 2025

Voa of valvoline premium blue RESTORE gen 2.

• Jw95

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[rstcso]

Did they decide to stop testing for Titanium, or is this a mistake on this report?

It looks like it's no longer on their report. I'll ask.

 

[himemsys]

In my latest communication with Lake, I asked why his molybdenum levels typically report significantly higher than Blackstone and Oil Analyzers. He said their lab uses RDE vs ICP.

I am asking a different question than that. Your report does not show Titanium (near the bottom, right above Nickel in the linked reports). Did they decide to stop testing for Ti, or is this an accidental omission on your report?