Honda 08232-H99-K1LA1 SAE 10W-30 Marine Quart of Oil, Pack of 12

What It Is

This is a bulk pack of 12 quarts of Honda SAE 10W-30 marine-grade engine oil, designed for 4-stroke outboard engines and Honda lawn mower engines that require detergent oil with friction modifiers.

Fitment & Compatibility

• Engine type: For Honda GCV, GXV, GC, and GS series small engines used in walk-behind mowers, pressure washers, and generators—but only if the manual specifies SAE 10W-30. Check your owner’s manual oil viscosity recommendation.
• Marine use: Formulated for Honda outboards (BF series) and other 4-stroke marine engines. Not for 2-stroke or diesel engines.
• OEM vs aftermarket: This is genuine Honda oil, not a generic substitute. If your engine requires Honda’s proprietary additive package (some Honda mowers do), this is the correct choice.
• Measurements: Each quart is 32 oz. The pack of 12 covers multiple oil changes (typical Honda mower takes 18–22 oz per change). Verify your engine’s oil capacity before buying.

Key Things to Know

• Quality: Meets Honda’s strict specifications for wear protection and thermal stability. Marine formulation includes corrosion inhibitors for high-humidity or coastal use.
• Installation difficulty: Easy—standard pour-and-check. No special tools needed. Just drain old oil, refill to dipstick mark.
• Common gotcha: This oil is not recommended for Honda mowers requiring SAE 5W-30 or 10W-40. Using the wrong viscosity can cause poor cold starts or excessive wear. Also, marine oil may cause clutch slip in some walk-behind mowers—check your manual for “friction-modified” warnings.
• Shelf life: Unopened quarts last 5+ years if stored in a cool, dry place.

Should You Buy It

Buy this if you own multiple Honda small engines (mowers, generators, outboards) that all use SAE 10W-30 and you want OEM-quality oil in bulk. It’s overkill for a single mower—you’ll have leftover quarts. Skip it if your engine calls for a different viscosity or if an aftermarket 10W-30 (like SAE 30) is acceptable per your manual.