Amsoil EFO 0w40 Euro Oil

I would trust those over the singular outside the USA/Canada VOA/UOA's. Plus 50ppm in Zn/P simply will make no difference. Look at the Mo and B levels for example.
Yes, if he's got VOA's or UOA's of the EFO with what I would consider "typical" levels of phosphorous (vs what we see in the data buster and I are discussing) for a full-SAPS oil, then I'd not be concerned.

If, on the other hand it really is ~750 vs Mobil's 930, that's a rather major difference.
 
Yes, if he's got VOA's or UOA's of the EFO with what I would consider "typical" levels of phosphorous (vs what we see in the data buster and I are discussing) for a full-SAPS oil, then I'd not be concerned.

If, on the other hand it really is ~750 vs Mobil's 930, that's a rather major difference.
Yeah those numbers buster showed Im not sure are accurate at least based on the uoa's I have. I got those from my tuners FB page. I posted them on page 1 of this post. A user with similar stage 2 setup as myself.
 
Interesting. I viewed some motul xcess gen2 uoa's and have seen both ph and zn below 900. It varies but of the only two amsoil 0w40 uoa's I have (from 2023) the zn and ph were comparable for sure. If anything the zn in the amsoil was higher. This is after xxkms driven in a different vehicle but comparable none the less.
Don't worry about the Zn, it's just there to make the phosphorous play nice. It's the phosphorous that provides the anti-wear protection (and is what is limited by the API, there's no restriction on Zinc).

You are absolutely going to see variation between various VOA's and UOA's, they lack the precision to give you bang-on figures (that's not the purpose of the tool), they are basically just good for ballpark. So, if you get like 704, 715, 680, 692...etc that'd be ballpark 700.

I look for something with around 900ppm.
 
Don't worry about the Zn, it's just there to make the phosphorous play nice. It's the phosphorous that provides the anti-wear protection (and is what is limited by the API, there's no restriction on Zinc).

You are absolutely going to see variation between various VOA's and UOA's, they lack the precision to give you bang-on figures (that's not the purpose of the tool), they are basically just good for ballpark. So, if you get like 704, 715, 680, 692...etc that'd be ballpark 700.

I look for something with around 900ppm.
Thx. I know many who run motul sport (now power). Additive ppm are lower but many swear by these oils on the track; compromise between 300v and excess gen2 for those who use it as a street car mostly with a little track time.
 
Thx. I know many who run motul sport (now power). Additive ppm are lower but many swear by these oils on the track; compromise between 300v and excess gen2 for those who use it as a street car mostly with a little track time.
Power is TBH, marketing trick. 300V became more street friendly, and if there is little track time, street oils with Porsche A40, MB229.5 and LL01 combination of approvals are more than sufficient. We can talk outliers like alcohol or heavily tuned engines, but to blow off some steam once a month, street oil with those approvals rules.
 
Power is TBH, marketing trick. 300V became more street friendly, and if there is little track time, street oils with Porsche A40, MB229.5 and LL01 combination of approvals are more than sufficient. We can talk outliers like alcohol or heavily tuned engines, but to blow off some steam once a month, street oil with those approvals rules.
Good to know. I don't have any experience with power or sport just what I read. I run xcess gen2 in the warmer months.
 
Power is TBH, marketing trick. 300V became more street friendly, and if there is little track time, street oils with Porsche A40, MB229.5 and LL01 combination of approvals are more than sufficient. We can talk outliers like alcohol or heavily tuned engines, but to blow off some steam once a month, street oil with those approvals rules.
What's your favorite oil for a tuned motor on e85 these days? Besides HPL the other high HTHS options seem to be dwindling in availability.
 
What's your favorite oil for a tuned motor on e85 these days? Besides HPL the other high HTHS options seem to be dwindling in availability.
I really don't have a favorite for that application. I would say anything that is thick and low on esters or no esters.
I would base my choice on UOA and see where shearing is and go from there.
HPL BAS is specifically made for such applications. Amsoil would be another choice. Motul X-Cess 5W40? Maybe.
 
Good to know. I don't have any experience with power or sport just what I read. I run xcess gen2 in the warmer months.
I have a bunch of new 300V, and I did not do any track time with this fill in the engine. Did not have time. So, will do UOA to see where it lands after 5K OCI.
 
I really don't have a favorite for that application. I would say anything that is thick and low on esters or no esters.
I would base my choice on UOA and see where shearing is and go from there.
HPL BAS is specifically made for such applications. Amsoil would be another choice. Motul X-Cess 5W40? Maybe.
So explicitly not 300v. Amsoil is a choice but doesn't advertise ester content. Sounds like most 5w40 euro oils off the shelf would be fine, or at least better than most of the boutiques.
 
So explicitly not 300v. Amsoil is a choice but doesn't advertise ester content. Sounds like most 5w40 euro oils off the shelf would be fine, or at least better than most of the boutiques.
Motul X-Cess 5W40 is a good option as it is a bit thicker than others. 300V has a lot of Ester, so does Redline, and esters and alcohol don't mix well. Amsoil, as far as I know, is predominantly PAO.
Depending on the engine and dilution, 5W50 is also an option.
That si why UOA is a must to check where is dilution and shearing.
 
So explicitly not 300v. Amsoil is a choice but doesn't advertise ester content. Sounds like most 5w40 euro oils off the shelf would be fine, or at least better than most of the boutiques.
Amsoil SS uses a good dose of group V. Some of their Euro oils use ester as well.

Motul advertises ester but it's only found in some grades.
 
So some oils are, some are not. That is not informative at all.
All oils use some ester, even if it's in additive form. You're never going to know percentages.

If any company has used marketing hype for "ester" it would be Motul.
 
Sorry my scroll is locked.

Because of the alcohol fuel?
edyvw suggested that oils with lower ester content might be more suitable. In my case, it's a high-dilution turbocharged DI motor on e85, with a lot of money into it. I'd like to understand which oils should be avoided if possible, besides the obvious ones that advertise higher group V content.

Motul advertises ester but it's only found in some grades.
Some of their Euro oils use ester as well.
All oils use some ester, even if it's in additive form. You're never going to know percentages.
Do all oils use some ester, or just some?
 
edyvw suggested that oils with lower ester content might be more suitable. In my case, it's a high-dilution turbocharged DI motor on e85, with a lot of money into it. I'd like to understand which oils should be avoided if possible, besides the obvious ones that advertise higher group V content.




Do all oils use some ester, or just some?
Some just use ester additives such as borate esters/ZDP and some use ester co-baseoils.
 
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