Rislone ZDDP Zinc Supplement 11 oz 6-Pack — Restores Zinc & Protects Valve Train

Rislone Hy-per Lube Zinc ZDDP Supplement is a concentrated ZDDP (zinc dialkyldithiophosphate) oil booster designed to restore zinc and phosphorus levels in motor oil to protect valve trains and other high-wear engine parts.

Rislone’s Hy-per Lube Zinc ZDDP Supplement comes as an 11-ounce bottle and this listing is for a convenient six-pack, making it easy to treat multiple oil changes or several vehicles. The formula adds zinc and phosphorus extreme-pressure (EP) agents plus mixed esters to help resist viscosity and thermal breakdown, reduce friction at start-up, and help prevent wear to pistons, flat tappet camshafts, lifters, pushrod tips and bearings. It’s formulated for use when modern motor oils lack the higher ZDDP levels once common in classic and high-performance engines.

How does this ZDDP supplement protect engine parts during start-up?

At engine start, metal-to-metal contact is most severe because oil has yet to fully circulate. The ZDDP compounds in Rislone form a protective film on hot surfaces that helps prevent dry starts and immediate wear.

• Provides EP additives that bond to metal surfaces under heat and pressure.
• Reduces friction peaks at first crank to limit wear on camshafts and lifters.
• Clinging action helps protect bearings where oil films are thin.

Will this make modern oils work better in older engines?

Yes—modern low-phosphorus oils protect emission systems but can leave older valve trains underprotected. Adding Rislone Hy-per Lube replenishes zinc and phosphorus, helping newer lubricants meet the needs of flat tappet cams and classic engine components.

• Restores ZDDP levels lost in current low-phosphorus formulations.
• Helps reduce piston scuffing and cam wear associated with insufficient EP protection.
• Compatible as an oil supplement when used according to product directions.

How much product do I use and when should I add it?

The bottle is concentrated for easy dosing—check the product label for exact mix ratios based on oil capacity. Add the supplement after draining and before refilling with clean motor oil to ensure even dispersion.

• One 11 oz bottle treats multiple quarts depending on recommended ratio on the label.
• Best added at oil change for consistent mixing and immediate protection.
• Keep a six-pack on hand for fleet maintenance or seasonal servicing.

What performance benefits can I expect without overstating results?

Using this ZDDP booster helps reduce measurable friction and wear under high-pressure contact points and improves oil thermal stability. Over time, reduced wear can contribute to cooler operation and potentially longer component life when combined with proper maintenance.

• Helps reduce friction-related wear, particularly at startup.
• Stabilizes oil against viscosity and thermal breakdown in severe conditions.
• Helps prevent piston scuffing and protects the valve train.

Who is this for? Rislone Hy-per Lube Zinc ZDDP Supplement is aimed at owners of classic, restored, high-performance, or modified engines that require higher zinc/phosphorus protection than modern oils provide. It’s useful for hobbyists, racers, mechanics, and fleet operators who want to protect flat tappet cams, lifters, pushrod tips, pistons and bearings—especially in engines subject to heavy loads or frequent cold starts. If you run newer low-phosphorus motor oil but keep older valve train designs, this product helps bridge the gap between emission-focused lubrication and traditional wear protection. Always follow vehicle manufacturer guidance and the product label when adding supplements to engine oil.