Briggs and Stratton 100074 Pack of (2) 1-Quart 5W-30 Synthetic Oil

What It Is

This is a pack of two 1-quart bottles of Briggs & Stratton 5W-30 synthetic oil, designed for small engines like those in lawn mowers, tractors, and zero-turn mowers. It’s formulated for four-cycle engines and provides reliable lubrication in both hot and cold conditions.

Fitment & Compatibility

This oil is compatible with any four-cycle small engine that specifies SAE 5W-30 viscosity. Check your owner’s manual or engine label for oil type—most modern Briggs & Stratton engines (e.g., Intek, Vanguard, OHV) accept this. It’s not for two-cycle engines or those requiring SAE 30 or 10W-30. No deck size or brand restrictions; it fits any brand (Toro, John Deere, Craftsman, etc.) as long as the engine is four-cycle and calls for 5W-30. This is OEM-approved, so no aftermarket compatibility issues.

Key Things to Know

• Quality: Full synthetic, which offers better protection at extreme temperatures and longer intervals than conventional oil. Meets Briggs & Stratton specifications.
• Installation: Easy—just drain old oil, replace filter if applicable, and pour in. Each quart covers most mowers (typically 20–28 oz capacity). Use the dipstick to avoid overfilling.
• Gotchas: Not for engines requiring SAE 30—check your manual. Synthetic blends fine with conventional, but avoid mixing if you want full benefits. Store bottles upright to prevent leaks.
• Common issue: The pack of two is convenient for two mowers or one large-engine tractor, but verify your engine’s capacity—some small mowers only need 18 oz, leaving leftover oil.

Should You Buy It

Buy this if you own a four-cycle mower or small engine that specifies 5W-30 and want top-tier synthetic protection, especially for year-round use or variable climates. It’s a solid value for the price and rating, but if your engine calls for SAE 30 or you’re on a tight budget, a conventional oil may suffice.