Group 3 synthetics.

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Originally Posted By: tig1
The best oil for the dailey driver is most likely a blend of grp 3-4-5.


Why? What does a grp3 or 4 offer that a grpV doesn't?
 
Originally Posted By: tig1
The best oil for the dailey driver is most likely a blend of grp 3-4-5.
I think group 5 basestock is incompatible with group 3.
 
Originally Posted By: 09rexwagon
Originally Posted By: tig1
The best oil for the dailey driver is most likely a blend of grp 3-4-5.
I think group 5 basestock is incompatible with group 3.


No. Pretty much ALL oils contain some esters (group V).
 
Originally Posted By: chevrofreak
Originally Posted By: 09rexwagon
Originally Posted By: tig1
The best oil for the dailey driver is most likely a blend of grp 3-4-5.
I think group 5 basestock is incompatible with group 3.


No. Pretty much ALL oils contain some esters (group V).
Good to know. Why have I read some synthetic base stocks (real synthetic..not g3) are incompatible with dino based synthetics. Did I misread?
 
Originally Posted By: 09rexwagon
Originally Posted By: chevrofreak
Originally Posted By: 09rexwagon
Originally Posted By: tig1
The best oil for the dailey driver is most likely a blend of grp 3-4-5.
I think group 5 basestock is incompatible with group 3.


No. Pretty much ALL oils contain some esters (group V).
Good to know. Why have I read some synthetic base stocks (real synthetic..not g3) are incompatible with dino based synthetics. Did I misread?

That is not correct.
 
I've read a few comments on here that Redline oils are not compatible with petroleum oils. I don't know if it's fact or speculation. Redline oils aren't API certified, so there may be some truth to that. All API oils are required to be compatible with each other.
 
Originally Posted By: BuickGN
Originally Posted By: tig1
The best oil for the dailey driver is most likely a blend of grp 3-4-5.


Why? What does a grp3 or 4 offer that a grpV doesn't?


As Chevrofreak noted, this is not correct. At the dawn of common automotive use of synthetic oils, a couple mfrs used some primitive diesters that were incompatible with many other oils, and apparently, would actually solidify when mixed with other oils. Now, as many others have suggested, it's getting hard to say that an oil is this group or that, as most of them are balanced mixtures of different group base oils, concocted by the different brewers to achieve the particular goals they are shooting for.
 
Originally Posted By: mechtech2
Does it really matter if the base materials are chemicals or crude oil, if the end result of the processing is the same ?


As long as the price contours the complexity, then I don't think too many would argue with that.

Katrina afford XOM the opportunity to test marketing over substance. They even disclosed it. I think marketing won and they learned that their name could carry them for a good segment of the market ..where their PAO capacity could not cash the checks that their name brand wrote in demand.
 
True. Despite the minute advantages of PAO over a good grp III in certain performance characteristics the performance of the oils in long drain and high temp applications are so similar that it is hard to comeup with an application that the PAO is worth being concerned about its prsence at all.

I am becoming more and more a disbeliever in the superiority of PAO in real worls applications. In theory ...yes. In the field.. where is the evedence?
 
I agree that POA doesn't have the distinction that it once had. The baseline floor has come up a great deal with G II+ and stuff like Shell's XHVI Group III ..so it's harder for PAO to make a case where the ceiling is not moving upward in concert. While I truly think you get what you pay for, that may not line up with what you need ..with margin to spare even.

If Amsoil comes out with an SSO+ that was good for 50k ..how many could take advantage of it?
 
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