Shell Rotella ELC Extended Life Coolant/ Antifreeze is a "Fill for Life" carboxylate Based Coolant for Heavy Duty Diesel, Gasoline and Natural gas Powered Engines. Shell Rotella ELC Contains Ethylene Glycol and Nitrite and molybdate as secondary Inhibitors. This Product Requires no traditional SCA additions and Contains no silicate, Borate, nitrate or Phosphate. Shell Rotella ELC Extended Life Coolant Meets all the Requirements of CAT EC-1, TMC RP 329 and RP 338.

 Product Classification

• Type: Extended Life Coolant (ELC)
• Chemistry: Organic Acid Technology (OAT / Nitrited or NMOAT)
• Base Fluid: Ethylene Glycol
• Form: Concentrate (must be mixed before use)

Applications

Recommended for:

• Heavy-duty diesel engines
• Trucks and fleets
• Construction & mining equipment
• Agricultural machinery
• Mixed fleet operations (diesel + gasoline)

Temperature Protection (after dilution 50/50)

• Freeze protection: approx. -36°C (-34°F)
• Boil protection: approx. +129°C (265°F) (with pressure cap)

(Values depend on dilution ratio)

Service Life

• Up to 600,000 miles (on-road)
• Up to 12,000 hours (off-road)
• Extended intervals reduce maintenance cost

Property

Value

Appearance

Clear liquid

Color

Red / Orange

Base Fluid

Ethylene Glycol

Technology

OAT / NMOAT

Nitrite / Molybdate

Present (depending on variant)

Dilution

Required (typically 50/50)

pH (diluted)

~8–8.5

Compatibility

• Compatible with:
  • Other ELC coolants
  • Conventional coolants (mixing reduces life)
• Recommended:
  Use same coolant type for maximum service interval

Specifications & Approvals

Meets or exceeds:

• ASTM D3306
• ASTM D6210
• CAT EC-1
• TMC RP 329 / RP 338

Mixing Instructions

Because this is concentrated:

• Standard mix: 50% coolant / 50% deionized water
• Use distilled or demineralized water for best performance
• Do NOT use hard tap water (can cause scaling)