Automatic transmission oil composition
AssigneeHyundai Motor Company
InventorGee Sik Na
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Abstract
This invention relates to an automatic transmission oil composition and more particularly, to an automatic transmission oil composition to improve its physical properties such as low-temperature pour property, heat-oxidative stability and friction-adjusting capacity by adding some calcium salicylate compound, an detergent dispersant, to a common lubricant oil.
Claims4
Automatic transmission oil composition comprising the addition of an antioxidant, detergent dispersant, antiabrasive agent, anticorrosive agent, agent for adjusting a friction index, defoaming agent, viscosity index improver and colorant to a common lubricant oil, wherein one or more compounds selected from the following formula 1 and 2 as the antiabrasive agent is/are mixed with a compound expressed by formula 3 and the content ratio in the range of 0.01.about.5.0 wt %. ##STR4##
- MCO.sub.3 M(OH).sub.2 ( 3)
- Wherein,
- R is a saturated or unsaturated C.sub.8 .about.C.sub.100 aliphatic group;
- M is a calcium, barium or magnesium atom.
Dependencies are inferred from the claim text.