SYNPLUS DL-1 5W/30 represents a top-tier, fully synthetic engine oil engineered to deliver exceptional performance for modern diesel engines. This oil leverages state-of-the-art oil formulation and additive technology to provide the highest level of engine protection while simultaneously enhancing fuel efficiency.

Designed as a stable, stay-in-grade oil, SYNPLUS DL-1 5W/30 is compatible with both catalyst and Diesel Particulate Filter (DPF) systems. It’s engineered for extended oil change intervals in car and light van diesel engines. These engines are specifically designed to take advantage of this low-friction, low-viscosity oil, featuring a High Temperature/High Shear Rate (HTHS) viscosity of at least 2.9mPa.s.

SYNPLUS DL-1 5W/30 complies with the Japanese (JASO M355:2005 & M355:2017) DL-1 performance standard. This standard expands upon the existing DH-1 classification for diesel engines, recognizing the distinct requirements of passenger car light diesel engines, as well as truck and bus diesel engines when utilizing fuel with a maximum sulfur content of 0.005%. In addition to the established benchmarks for engine detergency, wear prevention, and overall performance, this oil meets the specific requirements for reducing soot buildup (a contributor to DPF clogging) and limiting oil constituents that may hinder catalyst performance.

SYNPLUS DL-1 5W/30 meets today’s environmentally conscious market demands of reduced emissions and increased fuel efficiency.


  • Longer drain intervals
  • Better fuel economy
  • Longer life for catalytic exhaust systems
  • Preserved performance of DPF and TWC filter systems


SYNPLUS DL-1 5W/30 meets the JASO DL-1 performance level. Suitable for use in an ACEA C2 application when outside of warranty.

Always consult your vehicle owner’s manual for the manufacturer’s lubricant recommendations.

Density (kg/Lt) @15oC0.850
Viscosity (cSt) @100oC9.4
CCS @ -30oC (cP)4500
Viscosity Index167
HTHS (cP)3.0
TBN (mg KOH/g)4.2
Sulphated Ash (% wt)0.5
Phosphorus (% wt)0.08
Sulphur (% wt)0.31
Flash Point (oC)230

Available in:         Bulk, 200 Litres, 20 Litres, 10 Litres, and 5 Litres

Item Code:            VI1-2106

Product Informations

Product Data Sheet

Material Safety Data Sheet