Impressive VI on Quaker State High Mileage

[Huskymaniac]

According to this:

http://motoroilbible.com/data-comparisons-combined.pdf

Quaker State 5W-30 has the highest viscosity index (176) of all the high mileage oils including Mobil 1. I know this says nothing of the cleaner and conditioner additives but from a pure viscosity index, it is impressive and is in the domain of full synthetics. It can get down to -30C here so I need a good viscosity at that temp but it is an older engine and I don't want the oil to get too thin at operating temperatures. This oil seems to have great low temperature viscosity and is a little thicker at operating temperatures for a 5W-30.

Comments are welcome. My next oil change is coming up soon. I just bought this car with 74K miles on it and the first oil change was Pennzoil 10W-40 High Mileage. I am leaking and burning zero oil as best as I can tell. I don't think that was the case when I bought the car so I am happy with Pennzoil and will definitely use it again in the next spring/summer. Also, the oil is incredibly clean for the end of an OCI. But now I want to switch to 5W-30 for winter and am looking closer at viscosity.

 

[Steve S]

Usually a VI number in a finished base stock means more viscosity improvers.

 

[sangyup81]

I wouldn't be too impressed by initial VI especially in a non-synthetic unless you intend to dump it after 3000 miles or something short like that.

 

[saaber1]

Originally Posted By: Steve S
Usually a VI number in a finished base stock means more viscosity improvers.
Exactly

 

[Huskymaniac]

Originally Posted By: sangyup81
I wouldn't be too impressed by initial VI especially in a non-synthetic unless you intend to dump it after 3000 miles or something short like that.


I do. I don't plan to do extended OCIs or I would go all the way to Redline oils. But for motor oil, I am in the short OCI camp due to combustion artifacts. For tranny and gear oils I use Redline.

For an older motor where I want to avoid leaks, is the VI more important that some of the other oil analysis consideration? So long as there are sufficient seal conditioners, I would think so.

 

[Fallguy]

Huskymaniac,

You are spot on with this. I was just buying some "cheap oil" for a high mileage vehicle of a family members vehicle and was blown away by the VOA of this oil.

11.5, has approx 150 boron & 250 moly plus good amount of zddp and seal conditioners!

Whats not to love?

----from previous poster----------

Okay, here is the VOA I got back from Dyson Analysis. All numbers are zero unless I've listed them.

Calcium - 1692
Magnesium - 8
Zinc - 808
Phos - 759
Moly - 247
Silicon - 4
Boron - 142
Vis @ 100c - 11.5
Flash - 400
TBN - 7.2

There you go.



Yes TBN may be low or something but looks like a great dino in my opinion.

https://bobistheoilguy.com/forums/posts/1767346/

 

[Huskymaniac]

Hey, thanks for that fallguy!

 

[CATERHAM]

The VI cannot be extrapolated down to super cold temps like
-30C.
At those temps you want a 0W-30 oil with a low MRV (Borderline Pumping Viscosity) spec'.
And you can choose whatever "thickness" at operating temp's that you like. I don't know if you can get it in your area but the best cold performing 30wt oil is Petro-Canada 0W-30 with an MRV of 14,204 cP. It still has a HTHS vis (the true measure of operating viscosity) of 3.1 cP. Second best would be M1 AFE 0W-30 with an MRV of 17,100 cP.
If you want a really thick at operating temp's 0W-30 there is always GC.

 

[Mokanic]

Originally Posted By: CATERHAM
The VI cannot be extrapolated down to super cold temps like
-30C.
At those temps you want a 0W-30 oil with a low MRV (Borderline Pumping Viscosity) spec'.
And you can choose whatever "thickness" at operating temp's that you like. I don't know if you can get it in your area but the best cold performing 30wt oil is Petro-Canada 0W-30 with an MRV of 14,204 cP. It still has a HTHS vis (the true measure of operating viscosity) of 3.1 cP. Second best would be M1 AFE 0W-30 with an MRV of 17,100 cP.
If you want a really thick at operating temp's 0W-30 there is always GC.

PC advertised their super-duper groupIII base oils but with the cold temp performance of their products they must use at least some PAO in the stuff. I have heard of pour point depressants but but surely it's not all PPD that gives their fluids the low temp performance they enjoy. They seem to have some good products though I have never tried them.

 

[CATERHAM]

Good question, which I and others have put to Petro-Canada but the tech' guys I've corresponded with just don't know.
I've always wondered if oil's that contain a high % of PPD detracts from an oil's natural lubricity at hot operating temp's?

Another oil that you can't get which is PAO based is ESSO's XD-3 0W-30 and it has an MRV almost as good at 14,900 cP at -40 degrees. It's more impressive to me because it's a HDEO 30wt oil with a KV100 of 12 cSt. Even their 0W-40 is impressive with a MRV @ -35C of 9,300 cP which is lighter than any 5W-30 on the market, and that's with a KV100 of 15 cSt.

 

[BBDartCA]

If this is a group I or II base oil, then there is a heavy VI improver in add pack. These base oils are usually in the 80...120 range. Probably a pretty volitile blend that should be kept at the 3K OCI range.

 

[motorguy222]

Johnny,which used to work for SOPUS,recommends the QS HM over the Penz HM.

 

[shpankey]

Is this the QS HM that comes with Slick 50 in it? (it says so on the bottle)

 

[motorguy222]

Originally Posted By: shpankey
Is this the QS HM that comes with Slick 50 in it? (it says so on the bottle)


Its not the Slick 50 from years ago,it seems to be the name for the add pack that is in the oil but it isnt the Slick 50 teflon from a few years ago.

 

[addyguy]

This isn't the only QS oil that has an impressive VI....they also make a semi-synthetic 'Winter blend' 5W-30 oil that has a VI of 199!

 

[CATERHAM]

Originally Posted By: addyguy
This isn't the only QS oil that has an impressive VI....they also make a semi-synthetic 'Winter blend' 5W-30 oil that has a VI of 199!


That's a misprint the VI is 169 which is still high for a non 100% syn oil.
Not even a 100% syn 0W-30 has a VI approaching 199. The highest I'm aware of is RLI 0W-30 at 193 and this oil shears like there's no tomorrow.

 

[addyguy]

Originally Posted By: CATERHAM
Originally Posted By: addyguy
This isn't the only QS oil that has an impressive VI....they also make a semi-synthetic 'Winter blend' 5W-30 oil that has a VI of 199!


That's a misprint the VI is 169 which is still high for a non 100% syn oil.
Not even a 100% syn 0W-30 has a VI approaching 199. The highest I'm aware of is RLI 0W-30 at 193 and this oil shears like there's no tomorrow.


Uuummm....how do you know this?

There isn't a PDS for this oil anywhere, and what I'm going from is memory of a thread on this oil. I'm positive I've remebered this correctly, I'm just wondering if you have a PDF of this oil?

 

[Fallguy]

Wish Quaker State had synthetic with as much moly and boron as the High Mileage Dino they make or do they have something along this line already?