Before group III were so popular, it was not so rare......
LSJR on new Amsoil Synthetic Blend VOA Ester!
- Thread starter Glenda W.
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What difference does that make? Maybe one will be "sacrificial" and the other not? For lack of better words.
Patman
Staff member
You will remember how hard that Bob was pushing the Schaeffer blend back in the early days of the site. In fact he thought it was better than the full synthetic that they were selling. He even convinced me to run it for a little while in the 95 Firebird Formula that I had.
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I wasn't around back then so I was curious if you knew what Bob's reason for saying that the Schaeffers 7000 is better than the 9000? Thanks
Patman
Staff member
I don’t recall him actually giving his exact reasons to be honest, I always was curious since he likely would have made more money selling the full synthetic as opposed to the blend.
MolaKule
Staff member
Not exactly. No ester will be sacrificial and another non-sacrificial.
I was referring to Buster's comments: @buster "Yeah there is nothing new going on here at all other than Amsoil "appears" to be putting a more respectable amount of ester into a synthetic blend, which is something you don't often see.
When I say ester I mean beyond borate esters and ZDP, I'm talking about co-base oil which seems to be present based on the 33 virgin oxidation value. Most off the shelf oils are <10 for virgin oxidation value. of course complete end formulation is what matters most."Here's the point: There are so many DI additive components that are either esterified or in an ester base oil, in order to increase solubility with non-polar base oils such as PAO, you need more than a cheap $30 analysis to differentiate those additive components from an ester base oil.
So let's not get too "gushy" about oxidation percentages.
While you can't determine the amount of group V, an abs reading above 25 usually indicates an ester co-base. This is per multiple oil analysis companies. The % may be only as much as 8% but it's there. Additives alone won't drive up oxidation values that high IMO. I say that based on similar boron/ZDP additives in other grades (non SS) where the oxidation level falls below 10 (most off the shelf oils). While additives are esterized they don't raise the virgin oxidation number that much. Many oils have a lot of boron, ZDP and still have an oxidation value of <10. This is "likely" due to very little ester co-base.
Also consider every high-end boutique oil - Red Line (90-129), Amsoil SS (50-62), Vavoline Premium Restore (110), Motul 300V (62)
(all have virgin oxidation range values from 62-130).
Strong correlation. You can also see the peaks on FTIRs confirming presence of some ester co-base.
From Speediagnostix:
"A high oxidation reading means the oil is past its useful life or it contains Ester base oils. If the oil is not Ester based, then reduce the drain interval. If the oil is Ester based, please submit a sample of the unused oil to establish the oxidation baseline for your oil."
Motul:
Valvoline Premium Blue Restore:
Also consider every high-end boutique oil - Red Line (90-129), Amsoil SS (50-62), Vavoline Premium Restore (110), Motul 300V (62)
(all have virgin oxidation range values from 62-130).
Strong correlation. You can also see the peaks on FTIRs confirming presence of some ester co-base.
From Speediagnostix:
"A high oxidation reading means the oil is past its useful life or it contains Ester base oils. If the oil is not Ester based, then reduce the drain interval. If the oil is Ester based, please submit a sample of the unused oil to establish the oxidation baseline for your oil."
Motul:
Valvoline Premium Blue Restore:
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That is what I was picking up from what you were putting down. Just had to hear it from the horses mouth. Not that you are a horse.
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