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Briggs and Stratton 100074 SAE 30W Motor Oil

SAE 30 from the OEM brand for 4-stroke lawn mowers and generators above 40F.

✎ PickHonest Research Desk▦ Updated October 15, 2026◷ 3 min read

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Best Overall

Briggs and Stratton 100074 SAE 30W Motor Oil

Briggs and Stratton

SAE 30 from the OEM brand for 4-stroke lawn mowers and generators above 40F.

  • SAE 30 weight
  • For air-cooled small engines
  • OEM brand for Briggs engines

Pros

  • SAE 30 is correct for most 4-stroke lawn mowers and generators in temperatures above 40F
  • Briggs and Stratton is the OEM brand - no compatibility questions for Briggs engines
  • Formulated for air-cooled engines that run hotter than automotive engines

Cons

  • Single-weight - do not use in cold-start conditions below 40F
  • Conventional oil - synthetic lasts longer between changes
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Where the Briggs and Stratton 100074 SAE 30W Motor Oil ranks

Best picksBest Motor Oil for Small Engines 2026: 10 Oils for Lawn Mowers, Generators, and Pressure WashersOur top pick for motor oil for small engines is the Briggs and Stratton 100074 SAE 30W Motor Oil (SAE 30 is correct for most 4-stroke lawn mowers and generators in temperatures above 40F).