Example 4
The formulation baseline was duplicated except the presence of 0.30 wt. % of Propomeen® T12 (N-tallowalkyl-1,1′-iminobis-2-propanol, Akzo Nobel, CAS 68951-72-4, total amine value 145-152 mg KOH/g) and 1.98 wt. % actives of a boron post-treated succinimide dispersant derived from ˜1000 MW PIBSA and heavy polyamine. The lubricating oil composition had a total 490 ppm of boron from the borated sulfonate, organic friction modifier, and borated dispersant.
The formulation baseline was duplicated except the presence of 0.30 wt. % of SABO® STAB UV 91 (2,2,6,6-tetramethyl-4-piperidinyl esters (fatty acid mixture), SABO, CAS 61788-62-3, total amine value 128-137 mg KOH/g) and 1.98 wt. % actives of a boron post-treated succinimide dispersant derived from ˜1000 MW PIBSA and heavy polyamine.