RAM 1500 2021 - Page 442

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440 TECHNICAL SPECIFICATIONS

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NOTE:

If Climatized or Number 1 ULSD fuel is not available, and you are operating below 20°F (-6°C), in sustained arctic conditions, Mopar® Premium Diesel Fuel

Trea

tment (or equivalent) is recommended to avoid gelling.

Fuel Selection — 3.0L Turbo Diesel Engine

Use good quality diesel fuel from a reputable supplier in your vehicle. Federal

law

requires that you must fuel this vehicle with Ultra Low Sulfur Highway Die-

sel fuel (15 ppm Sulfur maximum) and prohibits the use of Low Sulfur High-

way Diesel fuel (500 ppm Sulfur maximum) to avoid damage to the emissions

ontr

ol system.

For most year-round service, Number 2 diesel fuel meeting ASTM specifica-

tion D-975 Grade S15 will provide good performance. We recommend you use

a bl

end of up to 5% biodiesel, meeting ASTM specification D-975 with your

diesel engine.

This vehicle is compatible with biodiesel blends greater than 5% but no

grea

ter than 20% biodiesel meeting ASTM specification D-7467 provided the

shortened maintenance intervals are followed as directed.

Diesel Exhaust Fluid

Mopar® Diesel Exhaust Fluid (API Certified) (DEF) or equivalent that has been

API

Certified to the ISO 22241 standard. Use of fluids not API Certified to ISO

22241

may result in system damage.

Component Fluid, Lubricant, or Genuine Part

CAUTION!

 Mixing of engine coolant (antifreeze) other than specified Organic Additive Technology (OAT) engine coolant (antifreeze), may result in engine damage and

may decrease corrosion protection. Organic Additive Technology (OAT) engine coolant is different and should not be mixed with Hybrid Organic Additive Tech

nology (HOAT) engine coolant (antifreeze) or any “globally compatible” coolant (antifreeze). If a non-OAT engine coolant (antifreeze) is introduced into the

coolin