10W-30 FC-W 4-Stroke Catalyst Oil, Gal.

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 Meets or exceeds manufacturers recommended specs. Backed by Sierra’s Limited Lifetime Warranty. Industry leading wear protection and deposit control Capitalizing on "ZDDP" anti-wear additive technology Prevents phosphorous depletion and extends the emission catalyst life NMMA FC-W Certified