MolaKule
Staff member
If you have looked over on the other thread I mentioned this:
Originally Posted by MolaKule
In TC oils, the majority of components are Multi-Functional Friction Modifiers/AW's where most of the friction modifier/AW's are one or more polyisobutylenes of various molecular weights. Older formulas used brightstock but brightstock leaves a host of deposits and residues.
In synthetic TC-W3 oils, the Multi-Functional Friction Modifiers/AW's are a combination of polyisobutylenes of various molecular weights and POE's of Trimethylol Propane (TMP) esters. The TMP esters may also do some cleaning of the combustion system while in aerosol form.
In ancient TC formulas, a Stoddard solvent had to be added in order to get the brightstock and other heavy oils (Group I and II 30 grade oils) to go into solution, but TMP esters now take care of solubility issues.
Base oils may be Group III oils, and or some PAO's, but are minority components.
The additives are: a polyisobutenyl (ashless) succinimide dispersant, a phosphorylated Borate (another AW/Anti-scuff agent), and a combustion enhancer of either a sulphurized oxymolybdenum dialkyl-dithiophosphate or a Titanium-compound.
Now I don't know what Formula Amsoil is using but these synthetic formulas have traditionally contained those smokeless burning polyisobutylenes.
Now certain types of polyisobutylenes has been known to improve fuel atomization, but in a 640:1 or even a 512:1 I think you would be hard pressed to detect more than a 0.25% improvement in mileage.
Originally Posted by MolaKule
In TC oils, the majority of components are Multi-Functional Friction Modifiers/AW's where most of the friction modifier/AW's are one or more polyisobutylenes of various molecular weights. Older formulas used brightstock but brightstock leaves a host of deposits and residues.
In synthetic TC-W3 oils, the Multi-Functional Friction Modifiers/AW's are a combination of polyisobutylenes of various molecular weights and POE's of Trimethylol Propane (TMP) esters. The TMP esters may also do some cleaning of the combustion system while in aerosol form.
In ancient TC formulas, a Stoddard solvent had to be added in order to get the brightstock and other heavy oils (Group I and II 30 grade oils) to go into solution, but TMP esters now take care of solubility issues.
Base oils may be Group III oils, and or some PAO's, but are minority components.
The additives are: a polyisobutenyl (ashless) succinimide dispersant, a phosphorylated Borate (another AW/Anti-scuff agent), and a combustion enhancer of either a sulphurized oxymolybdenum dialkyl-dithiophosphate or a Titanium-compound.
Now I don't know what Formula Amsoil is using but these synthetic formulas have traditionally contained those smokeless burning polyisobutylenes.
Now certain types of polyisobutylenes has been known to improve fuel atomization, but in a 640:1 or even a 512:1 I think you would be hard pressed to detect more than a 0.25% improvement in mileage.