SIERRA MARINE CATALYST OIL 10W30 QUART|18-9420CAT-2

Meets requirements of modern 4-stroke recreational engines with or without emission catalyst systems Approved for all 4-stroke applications including Outboard, Sterndrive and Inboard Exceeds all 4-stroke requirements including FC-W and FC-W Cat Compatible Provides superior corrosion protection under extreme conditions Industry leading wear protection and deposit control Capitalizing on "ZDDP" anti-wear additive technology