Amsoil Signature Series NOACKS

[Cup of Joe]

Hasn't anyone noticed the NOACK numbers on amsoil Signature series. these are at least as good as Ultra, etc.

ALM(5w-20) 5.5 ATM(10w-30) 5.3

http://www.amsoil.com/lit/databulletins/g2880.pdf

 

[KHP]

Yep Amsoil has had those specs way before PU SN ever came out. I only liked PU because it was easily available at Walmart for a reasonable price and their performance seems comparable.

 

[badtlc]

they are almost as good and almost twice as expensive.

 

[asharris7]

 

[Ben99GT]

Originally Posted By: TaterandNoodles
Hasn't anyone noticed the NOACK numbers on amsoil Signature series. these are at least as good as Ultra, etc.

ALM(5w-20) 5.5 ATM(10w-30) 5.3

http://www.amsoil.com/lit/databulletins/g2880.pdf


Ultra 5W-20 - 5.0%
Ultra 10w30 - 4.8%

 

[demarpaint]

Maybe Amsoil is buying their base oil for their Signature Series oil from SOPUS?

 

[CATERHAM]

Hasn't anyone noticed the NOACK numbers on amsoil Signature series. these are at least as good as Ultra, etc.
ALM(5w-20) 5.5 ATM(10w-30) 5.3
Yes they're very good but they are also very heavy low VI oils.

 

[asharris7]

Caterham, isn't it true that they may be heavier, that it all depends on what geographical location they are in spec wise? Example: some countries spec ow-30, 5-30 etc for the same van we have....but here it's spec'd ow-20. My thoughts that the heavier amsoil oils aren't hurting a thing except maybe MPG?

 

[Cup of Joe]

All of the longer drain oils have lower VI, higher HTHS and generally better NOACK. I would say there is a reason for that.

 

[CATERHAM]

Originally Posted By: asharris7
Caterham, isn't it true that they may be heavier, that it all depends on what geographical location they are in spec wise? Example: some countries spec ow-30, 5-30 etc for the same van we have....but here it's spec'd ow-20. My thoughts that the heavier amsoil oils aren't hurting a thing except maybe MPG?

Can you run a 30wt oil in an application for which a 20wt is specified? Of course you can. The question is, why would one want to if their is no benefit from doing so. Even in an extremely hot climate there is still no benefit to running a heavier than specified oil although the start-up disadvantages are largely mitigated.

 

[asharris7]

That's what I am saying. Specs are different for each country....not saying it's a benefit or a negative. Specs are specs for a reason otherwise Honda, amongst others, would recommend the same oil vis regardless of origin.

 

[CATERHAM]

Originally Posted By: TaterandNoodles
All of the longer drain oils have lower VI, higher HTHS and generally better NOACK. I would say there is a reason for that.

That is the case at present although SS 0w30 years ago did have a VI over 190 IIRC. SS oils are currently formulated using heavier base oils hence lower VIs; I'm not sure of the reason why.
I'm sure that a longer drain oil could be formulated from lighter base stock oils if Amsoil chose to do so but the cost I suspect would be higher.
The OEM TGMO 0W-20, a very light oil, has a recommended OCI of 10,000 miles which is not exactly a short OCI.

 

[asharris7]

TGMO 10k OCI for just Toyota's correct?

 

[buster]

It could be they are using either more XOM PAO, or even Chevron's PAO's.

GTL is exclusive to Shell currently.

 

[CATERHAM]

Originally Posted By: asharris7
That's what I am saying. Specs are different for each country....not saying it's a benefit or a negative. Specs are specs for a reason otherwise Honda, amongst others, would recommend the same oil vis regardless of origin.

Except the viscosity demands of the same engine are not going to change regardless of where it is located on the planet.
In other words, if a 0W-20 is good enough for Death Valley in the summer States side, it's good enough for the Australian outback.
What's different is that the advantages of the more expensive 0W-20 oil have been largely mitigated to the point that a cheaper more readily available light 5w30 conventional oil will do the job.
That said, 20wt oils are beginning to be specified in OZ but it will probably a very long time before you'll see it third world Africa.

 

[CATERHAM]

Originally Posted By: asharris7
TGMO 10k OCI for just Toyota's correct?

Yes, but even for an AMSOIL Signature Series oil the actual OCI is still application specific. You just can't assume you can run for 15,000 miles regardless. Ultimately a used oil analysis is the only way to know for how long an oil will remain serviceable.

 

[asharris7]

I understand what you are saying and have taken heed in your advice, Hence the TGMO and Mazda on my shelf in the garage lol. I guess all I wanted to know is if would cause any harm. (5-30, 0-30 etc) not that I would use those however.

 

[CATERHAM]

Originally Posted By: asharris7
I understand what you are saying and have taken heed in your advice, Hence the TGMO and Mazda on my shelf in the garage lol. I guess all I wanted to know is if would cause any harm. (5-30, 0-30 etc) not that I would use those however.

No harm particularly in a NC climate.

 

[asharris7]

yeah it's already in the 90's here. . . in May. I'm sure we'll hit the 100's by next month. Brutal here, but hey, at least it's not Florida lol.

 

[CATERHAM]

It's only 64F here right now.