HKS Super Oil

Status
Not open for further replies.
Joined
Nov 18, 2018
Messages
237
Location
Melbourne, Australia
Hey all

Picked up some HKS oil (7.5w35) on clearance yesterday!

Has anyone used this before? It claims to be 100% synthetic (as opposed to "fully" synthetic)
 
Hmmm probably doesn't meet 5w standards but exceeds 10w standards. Since the grade officially doesn't exist, it's marketing....

That said, never heard of them and couldn't find much data online...not on PQIA that's for sure.
 
Originally Posted by DV0993
Originally Posted by addyguy
7.5W-35 is not a grade.


Apparently it is

https://www.hks-power.co.jp/en/product/oil/sop/index.html


No, it's not.

[Linked Image]


There is no 7.5 Winter rating, and there is no SAE 35 grade.
 
I live in America. We dont use 7.5W - 35 grade. You should try contact HKS. They sure makes decent parts for Japanese sports cars tho.
 
Originally Posted by OVERKILL
You'll notice they seem to qualify the legitimate grades with "API" at the end, whilst their fabricated ones lack it.

Note that the legitimate grades do have an ILSAC mark or an API mark that appears, at least, to look legitimate (not confident with how they placed the API non-ILSAC logo, but that's another matter). So, with respect to the original post, as you show with SAE J300, it's not a legitimate grade. Of course, if it doesn't appear on SAE J300, API and ILSAC aren't going to have anything to do with it. I doubt the ACEA self-certification system allows that, either, let alone any OEM that issues approvals.
 
Very interesting - So basically what the above posts are saying is that it is not possible to estimate the performance of these oils because they have applied for (or passed) certifications?
 
Originally Posted by DV0993
Very interesting - So basically what the above posts are saying is that it is not possible to estimate the performance of these oils because they have applied for (or passed) certifications?


They are made up grades with zero OEM approvals, so I'd say the track record of "performance" is non-existent. One can't even qualify their viscosity performance because they didn't use real grades, so we have no idea as to CCS and MRV, HTHS....etc.
 
Originally Posted by OVERKILL
Originally Posted by DV0993
Very interesting - So basically what the above posts are saying is that it is not possible to estimate the performance of these oils because they have applied for (or passed) certifications?


They are made up grades with zero OEM approvals, so I'd say the track record of "performance" is non-existent. One can't even qualify their viscosity performance because they didn't use real grades, so we have no idea as to CCS and MRV, HTHS....etc.


...without a VOA.
 
Originally Posted by 69Torino
Originally Posted by OVERKILL
Originally Posted by DV0993
Very interesting - So basically what the above posts are saying is that it is not possible to estimate the performance of these oils because they have applied for (or passed) certifications?


They are made up grades with zero OEM approvals, so I'd say the track record of "performance" is non-existent. One can't even qualify their viscosity performance because they didn't use real grades, so we have no idea as to CCS and MRV, HTHS....etc.


...without a VOA.


And even then, you don't get CCS and MRV on a VOA.
 
This is true. It would be at least interesting to see the viscosity in a VOA but I'm betting it's not sensational information. They are simply aiming at "tuners" that think they know exactly what viscosity they "need".

In other words a 7.5w-35 would end up a heavy 5w-light 40. So basically a 5w-40, but marketed with their own grading scale, which means nothing to the enlightened.
 
Originally Posted by 69Torino
This is true. It would be at least interesting to see the viscosity in a VOA but I'm betting it's not sensational information. They are simply aiming at "tuners" that think they know exactly what viscosity they "need".

In other words a 7.5w-35 would end up a heavy 5w-light 40. So basically a 5w-40, but marketed with their own grading scale, which means nothing to the enlightened.


Yup, or a 10w30 on the heavy end, closer to GC, but without any of the approvals or the cold flow.
 
Originally Posted by DV0993
Very interesting - So basically what the above posts are saying is that it is not possible to estimate the performance of these oils because they have applied for (or passed) certifications?

Not so much that, but a made up grade is just that. What is a 7.5W-XX? It's either a 5w-XX or a 10w-XX. If it cannot pass 5w-XX it might be a 10-XX. There is no participation award. There is no SAE 35. KV characterises an oil within a grade, and there are no subgrades.

In some ways, certifications can help guess performance. I know that the 5w30 in my sump right now will not have stellar cold cranking numbers compared to an ILSAC lube. It will also have higher HTHS than an ILSAC 0w-30, 5w30, or 10w30. Some here have erroneously called such a product a 7.5w-35. Note that Shell did not. They called it a 5w30 by correctly following SAE J300. By CK-4 and ACEA E6, I also know it won't set any cold cranking number records (but will still be within grade) and that it will have an HTHS of 3.5 or greater.

If one wants a "thick" 5w30, buy an HDEO or an A3/B4 or a C3 in 5w30. If one gets a 5w30 with a Starburst on the front, you know that the HTHS will be closer to the minimum and you will have excellent winter cold cranking numbers.
 
Originally Posted by s2krunner
You should try contact HKS. They sure makes decent parts for Japanese sports cars tho.


They make a really kick butt little airplane engine, too.
 
Originally Posted by s2krunner
I live in America. We dont use 7.5W - 35 grade. You should try contact HKS. They sure makes decent parts for Japanese sports cars tho.

decent? more like legendary.
 
Brings back good memories when I joined bitog. lol

I wanted to mix 10W and 5W to get 7.5W
It makes logical & mathematical sense
shocked2.gif


I was thrown on the BBQ grill ... Not to be mistaken with any index
grin2.gif
 
Status
Not open for further replies.
Back
Top Bottom