API SH
Definition:
Adopted in 1992 for describing engine oil first mandated in 1993. This oil is for use in service typical of gasoline engines in current and earlier passenger cars, van and light truck operations under vehicle manufacturers' recommended maintenance procedures. API SH engine oils provide performance exceeding API SG in areas of deposit control, oil oxidation, wear protection and rust/corrosion protection and have been tested in accordance with the CMA Code of Practice.
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