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Engine Treatment & Oil Additive Products

PRO-1 Oil Supplement

Enhances motor oil to increase lubrication, prevent oxidation deposits and reduce friction and wear in modern vehicles.

The Problem

Modern vehicles operate under conditions that put extreme stress on the motor oil. Today’s engines are smaller and operate at tighter machined tolerances and higher cylinder compression. Lighter viscosities and longer drain intervals result in decreased protection of lubricated parts and increased oil consumption. Stop-and-go driving, hybrid engine on/off cycles, and large temperature swings contribute to greater thermal and mechanical stress on the oil. Depletion of the lubrication properties of the oil causes oil oxidation, formation of deposits, engine wear, and lower performance, along with increased oil consumption.

The Solution

BARDAHL PRO® PRO-1 Oil Supplement uses ‘polar attraction’ technology to provide a robust layer of anti-wear and antifriction protection that extends the lubricant's effectiveness. Extra inhibitors help control oil oxidation, decrease deposit formation, and reduce bearing corrosion. By adding a durable lubricating film to metal parts, this formulation minimizes wear, improves and enhances overall engine performance while providing extra lubrication protection for city driving and during cold starts.


  • Boosts anti-wear, anti-friction, and extreme pressure performance of the oil.
  • Increases protection against thermal oxidation.
  • Reduces deposit formation throughout the engine.
  • Improves acid and corrosion protection.
  • Extra protection during high temperature / high load conditions.


Add at each oil change and between oil changes as needed. Pour contents into the crankcase prior to filling with new oil. One bottle will treat up to 5 quarts of motor oil. For older vehicles burning oil, use BARDAHL PRO® PRO-2 Oil Treatment #93450 or Oil Consumption Guard #93500 to restore performance. Dispose of any used or unused solution and container in accordance with local, state, and federal regulations.

  • Product & Size:
    93400 - 11 oz (325 ml)
  • UPC Code:
    0 76906 93400 8
  • Case Pack Qty/Wt:
    12 / 10 lbs