Abstract: A lubricant oil composition having balanced antiwear/extreme pressure and stability properties while providing friction reduction which comprises:(1) a major amount of a lubricating oil basestock; and(2) a minor amount of an amine phosphate salt of the formula: ##STR1## where R.sub.1 is C.sub.9 to C.sub.22, R.sub.2 and R.sub.3 are each independently C.sub.1 to C.sub.4 hydrocarbyl, R.sub.4 is c.sub.10 to c.sub.20 hydrocarbyl, and R.sub.5 is hydrogen to c.sub.10 to c.sub.20 hydrocarbyl; wherein the amine phosphate salt is soluble in the lubricant oil basestock at 25C, is a liquid at 25C, and the ratio of gram-atomic-equivalents of amine to phosphate in said salt is from about 1.0 to 1.2.

Abstract: Strontium-modified aluminium alloys may be produced by using strontium peroxide as the source of strontium. The strontium peroxide may be mixed with molten aluminium or molten aluminium alloy in a quantity sufficient to give the desired strontium metal content in the alloy being produced. The temperature of the molten aluminium or aluminium alloy with which the strontium peroxide is mixed is preferably at least 1000.degree. C.The strontium peroxide alloys produced may be master alloys for use in the production of casting alloys, or may be casting alloys. Strontium acts as a grain refiner in such alloys.