Does Havaline syn blend?

[clg305]

Does Havaline syn blend have the same add pack as the dino? I am refering to sm for both. I searched the VOA but didnt find anything on the sm havaline syn blend.

 

[Al]

http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=11;t=000310

The syn blend has way way less Moly and no boron. The conventional hgas a healthy shot of each.

 

[Blue99]

Actually, as the percentage of Grp III base oils in a dino formulation gets larger, the additives tend to decrease.

This is due to the higher VI index of the Grp III base oils and the greater resistance to heat & oxidation.

Moly will probably show the greatest decrease in the Havoline syn blend.

As a side note, whenever a VOA/UOA of a full Grp III syn is posted, the comment "add pack looks thin" will always show up in the thread!

 

[clg305]

Thanks for the link didnt spot that one for some odd reason but that about explains it.

 

[Bryanccfshr]

quote:

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Originally posted by Blue99:

As a side note, whenever a VOA/UOA of a full Grp III syn is posted, the comment "add pack looks thin" will always show up in the thread!

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look at valvoline Maxlife synthetic then I don't know the exact composition but I always assumed it ad mostly grp III Maxlife synthetic

 

[Blue99]

Bryan, I don't think MaxLife synthetic is a good example of a normal Grp III.

It's A3 rated, has SA of 1.3 and calcium of 3000+ ppm.

Look at the UOA/VOA's of the Pennzoil GF-3 syn, Havoline Syn, and probably Citgo & SuperTech for a good example of the typical add packs for Grp III's.

 

[Bryanccfshr]

Blue,
You're correct.. It is atpyical. Is the lack of Solvency of most grp III syns an issue? Or is it simply economics$$

 

[Ray H]

Let's see, Group IIIs contain lower percentages of acid forming sulfur compounds and oxidation-prone polycyclic aromatics, are less subject to oxidation, have a higher inherent viscosity index, and are less prone to shear-down. Could it possibly be that a robust additive package isn't as necessary for a Group III based finished motor oil than, say, for a Group I finished motor oil? (Nah, that's too easy - there's gotta be something else involved . . .)

 

[Al]

quote:

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Originally posted by Ray H:
Let's see, Group IIIs contain lower percentages of acid forming sulfur compounds and oxidation-prone polycyclic aromatics, are less subject to oxidation, have a higher inherent viscosity index, and are less prone to shear-down. Could it possibly be that a robust additive package isn't as necessary for a Group III based finished motor oil than, say, for a Group I finished motor oil? (Nah, that's too easy - there's gotta be something else involved . . .)

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I think thats what we are seeing. Dino oils with lots of Group III like Conoco oils/MotorCraft have pretty anemic add packs. Others like Havoline/C hevron have probably little GroupII but great add packs. The Havoline Syn blend cited is a perfect example.