Niteo Products Motor Medic Lead Substitute 12 oz — Case of 12, valve-seat protection for vintage engines

Motor Medic M5012-12PK is a 12-ounce lead substitute treatment sold in a case of 12, formulated to protect valve seats and upper cylinder components in older engines when using low-lead or unleaded gasoline.

Many classic cars, lawn and garden equipment, motorcycles, and off-road machines were engineered for leaded gasoline. As leaded fuel has become scarce, this concentrated additive restores the protective action that lead once provided, helping reduce valve seat wear and maintain engine durability when you must run low-lead or unleaded fuel. Each 12 oz. bottle treats up to 20 gallons of gasoline; this case contains twelve bottles so you can service multiple refuels or machines.

How does this product protect valve seats in older engines?

Motor Medic M5012-12PK deposits a durable protective film on valve and valve seat surfaces to help resist impact wear and recession. The formula includes a valve-seat anti-wear additive designed specifically for engines built to operate with leaded fuel, giving an engineered layer of protection when lead is absent.

• Forms a protective coating on valve faces and seats
• Includes valve-seat anti-wear chemistry
• Helps prevent upper-cylinder wear from repeated valve impacts

Will this let me run unleaded gasoline in vintage engines?

When used according to directions, the lead substitute allows many engines originally designed for leaded gasoline to run safely on low-lead or unleaded fuels. It does not change octane; it provides mechanical protection that helps reduce the risk of valve recession associated with unleaded fuel in susceptible engines.

• Compatible with low-lead and unleaded gasoline
• Intended to complement, not replace, correct octane selection
• Apply per bottle directions to ensure proper treatment ratios

How much fuel can one bottle treat and how is it used?

Each 12 oz. bottle treats up to 20 gallons of gasoline. Pour the measured dose directly into the fuel tank before filling with gasoline to ensure even distribution; follow the label instructions for dosing frequency and specific application guidance.

• 12 oz. treats up to 20 gallons of fuel
• Sold as a case of 12 for long-term or multi-vehicle use
• Best added prior to refueling so the additive mixes thoroughly

Is this product intended for on-road vehicles?

This formula is labeled for off-road use and is primarily intended for equipment and vehicles used away from public roads, such as farm and construction machinery, classic off-road bikes, and certain older recreational vehicles. Check local regulations and product labeling before use in registered on-road vehicles.

• Designed with off-road equipment in mind
• Verify legal and regulatory suitability for street-driven vehicles
• Use per local environmental and emissions rules

Who is this for: Motor Medic M5012-12PK is for owners and maintainers of older engines—collectors, restorers, fleet operators, landscapers, farmers, and off-road enthusiasts—who need a reliable lead substitute to protect valve seats when leaded gasoline is unavailable. Buying a case of 12 bottles suits shops or users who perform frequent servicing or manage multiple machines, offering a practical supply for routine fuel treatments.