Briggs & Stratton 30W Engine Oil Kit — 66 oz (48+18) with 2 oz Fuel Treatment, Warm‑Weather Formula

Genuine Briggs & Stratton 30W engine oil kit supplies 66 ounces of warm-weather lubricant plus a 2 oz fuel treatment to protect and maintain Briggs & Stratton engines.

This factory-approved set combines a 48 oz bottle and an 18 oz bottle of 30-weight oil designed for small engines, together with a concentrated 2 oz fuel treatment. The oil meets Briggs & Stratton warranty requirements and is formulated for use in warmer temperatures to support optimal engine performance. The fuel additive treats up to 10 gallons of gasoline to help stabilize fuel and reduce issues related to storage and combustion.

Will this oil work for my Briggs & Stratton engine?

This kit is designed specifically to align with Briggs & Stratton’s lubrication standards and is suitable for many of their single- and multi-cylinder small engines. Always check your engine owner’s manual for the correct viscosity and capacity before use.

• Contains factory-approved 30W lubricant compatible with Briggs & Stratton models
• Total volume 66 oz (48 oz + 18 oz) covers typical oil changes
• Warm-weather formula intended for 40–100°F operating range
• Maintains warranty compliance when manufacturer-specified oil is required

How do I use the fuel treatment and what does it do?

The included 2 oz Yellow 3‑in‑1 Advanced Fuel Treatment is a concentrated additive that mixes with gasoline to help condition stored fuel and improve combustion consistency. Add it per the directions to treat up to 10 gallons of gasoline before filling the machine.

• Treats up to 10 gallons from the single 2 oz bottle
• Helps reduce varnish and gum from stored fuel
• Improves fuel stability during off-season storage or intermittent use
• Simple dosing instructions printed on the bottle for correct mix ratios

What temperatures and conditions is this oil intended for?

This 30W formula is optimized for warm-weather operation; it performs best in moderate to hot ambient temperatures. For consistent cold-start performance below the specified range, consult your owner’s manual for a recommended lower-viscosity oil.

• Recommended operating range: 40–100° Fahrenheit
• Warm-weather viscosity for reliable lubrication under load
• Not formulated as a multi-season or winter-specific oil
• Follow engine manual for exceptions or seasonal changes

What’s included and where is it made?

The kit bundles two factory bottles of 30W engine oil plus the fuel treatment so you have the right quantities for routine service. Briggs & Stratton manufactures this kit in the USA and labels each component for straightforward identification and dosing.

• One 48 oz bottle (100028) and one 18 oz bottle (100005) of 30W oil
• One 2 oz Yellow 3‑in‑1 Advanced Fuel Treatment (treats 10 gallons)
• Packaged for ease of use during maintenance intervals
• Produced in the United States per Briggs & Stratton specifications

Who is this for: This factory kit suits homeowners, landscapers, and service technicians who operate Briggs & Stratton-powered lawn mowers, generators, and other small engines in warm climates. It’s especially useful for those who want an OEM-approved lubricant that keeps their engine within warranty guidelines and includes a compact fuel treatment for stable storage or intermittent use.