Opti-4 43024 SAE 30 20 FL. OZ (600 ML) 4-Cycle Engine Lubricant Bottle, 3-Pack

What It Is

Opti-4 43024 is a pre-measured SAE 30 4-cycle engine lubricant (20 fl. oz. / 600 mL per bottle, sold as a 3-pack) designed for small engines in push mowers, riding mowers, tractors, and other outdoor power equipment that require SAE 30 viscosity oil.

Fitment & Compatibility

• Viscosity: SAE 30 – use only if your engine manual specifies SAE 30 (common for warm-weather operation; not for 2-cycle or multi-viscosity oils like 10W-30).
• Volume: Each bottle is 20 oz. – check your engine’s oil capacity (most push mowers take 15–20 oz.; some larger engines may need two bottles). Do not overfill.
• Brand/Model Fit: Works with any 4-cycle engine from brands like Briggs & Stratton, Honda, Kohler, Toro, Craftsman, Husqvarna, etc., as long as SAE 30 is recommended.
• OEM vs Aftermarket: This is an aftermarket oil, not OEM-branded, but meets API service classifications (typically SJ or higher) for most small engines. Verify your engine’s API rating in the manual.
• Check Before Buying: Confirm your engine’s oil type (SAE 30 vs. 10W-30 vs. synthetic) and capacity in the owner’s manual. If your mower requires a different viscosity (e.g., 5W-30 for cold climates), this is not compatible.

Key Things to Know

• Quality: SAE 30 mineral oil suitable for temperatures above 40°F (4°C); not ideal for cold-weather starting. Meets common small-engine standards but lacks the additives of premium synthetics.
• Installation Difficulty: Easy – just unscrew cap, pour into oil fill tube, check dipstick. No tools needed. Pre-measured bottle eliminates guesswork.
• Common Gotchas: The 20 oz. bottle may be slightly more than some mowers need (e.g., 18 oz. capacity). Always fill gradually and check dipstick to avoid overfilling. Do not use in 2-cycle engines or 4-cycle engines requiring multi-viscosity oil.
• Value: 3-pack at ~$17.64 per bottle is competitive with single SAE 30 quarts but less convenient if you only need one change.

Should You Buy It

Buy this if you have multiple SAE 30 4-cycle engines (e.g., push mower, generator, pressure washer) and want a pre-measured, no-mess solution for warm-season use. Skip it if your engine requires multi-viscosity oil, if you operate in cold climates, or if you only need a single oil change (a quart bottle is cheaper).