RAM 2500 Truck 4WD L6-359 5.9L DSL Turbo VIN D FI (1998)
Engine Oil: Description and Operation
API SERVICE GRADE CERTIFIED
API Service Grade Certification Label-Gasoline Engine Oil
API Service Grade Certification Label-Diesel Engine Oil
In gasoline engines, use an engine oil that is API Service Grade Certified. In diesel engines, use an engine oil that conforms to API Service Grade
CF-4 or CG-4/SH. MOPAR provides engine oils that conform to all of these service grades.
Standard engine-oil identification notations have been adopted to aid in the proper selection of engine oil. The identifying notations are located on the
label of engine oil plastic bottles and the top of engine oil cans.
SAE VISCOSITY
An SAE viscosity grade is used to specify the viscosity of engine oil. SAE 10W-30 specifies a multiple viscosity engine oil.
Engine Oil Viscosity Recommendation-Gasoline Engines
Engine Oil Viscosity Recommendation-Diesel Engines
When choosing an engine oil, consider the range of temperatures the vehicle will be operated in before the next oil change. Select an engine oil that is
best suited to your area's particular ambient temperature range and variation.
ENERGY-CONSERVING OIL
An Energy Conserving type oil is recommended for gasoline engines. They are designated as either ENERGY CONSERVING or ENERGY
CONSERVING II.
