Lubricants Catalog
RUBIA WORKS 4000 15W-40
Very high performance lubricant especially designed for engines used in earthmoving activities (quarries, construction, mining, railroads…) requesting API CK-4 or CJ-4 level.
RUBIA OPTIMA 3500 FE 5W-30
Fully synthetic low-SAPS diesel engine oil with Fuel Economy technology based on the latest API CK 4 specification, suitable for on-road heavy-duty applications.