Star Tron Super Concentrated Diesel Formula - Stabilize & Rejuvenate Diesel, Biodiesel & All Regular Gasoline - 1 Oz Treats 32 Gallons

What It Is

Star Tron Super Concentrated Diesel Formula is a fuel additive that stabilizes and rejuvenates diesel, biodiesel, and all regular gasoline. It’s designed for lawn mowers, tractors, generators, and other small engines that sit unused for weeks or months.

Fitment & Compatibility

This is a fuel additive, not a mechanical part, so fitment is universal for any engine that uses diesel, biodiesel, or gasoline (including E10 and E15 blends). No deck size, model, or brand restrictions. Before buying, confirm your fuel type: it works with diesel and biodiesel, plus all regular gasoline, but not with two-stroke oil-premix (use the Star Tron Gasoline Formula for that). Check your owner’s manual if you’re unsure about using additives—most small engines allow them, but some warranty terms may exclude additives. No OEM vs. aftermarket concerns; it’s a standalone product.

Key Things to Know

• Concentration: 1 oz treats 32 gallons of fuel. For a typical 1-gallon mower tank, you’d use about 1/32 oz—hard to measure precisely. Use a syringe or dropper for small amounts.
• Installation: Pour directly into the fuel tank before filling with fuel. No mixing or tools required. Shake the bottle well first.
• Gotcha: It’s a “super concentrated” formula, so over-treating won’t harm the engine but wastes product. Under-treating reduces effectiveness. Stick to the ratio.
• Quality: Star Tron is a reputable brand with a 4.7-star rating from 302 reviews. It uses a proprietary enzyme-based formula that differs from simple stabilizers—it actually breaks down gum and varnish in old fuel.

Should You Buy It

Buy this if you own a diesel or gasoline lawn mower, tractor, or generator that you store for off-seasons or use infrequently. It’s excellent for preventing fuel degradation and reviving stale fuel in tanks or cans. Skip it if you only use fuel within a few weeks—a basic stabilizer is cheaper.