An engine oil additive package is a carefully balanced blend of seven to ten functional chemistries — each addressing a specific failure mode the base oil alone cannot manage. Anti-wear additives protect cam-and-follower contact under boundary lubrication. Detergents neutralise acidic combustion products. Dispersants suspend soot in HDD service. VI improvers maintain pumpability across a working temperature range. Antioxidants extend drain interval. Pour point depressants ensure cold-start performance.

Get any one of these wrong — under-treat, over-treat, or pair chemistries that compete for the same metal surface — and the finished oil either fails its OEM approval test or shortens the engine's life in field service. Our DI packages are calibrated to deliver a balanced response across all relevant failure modes at a treat rate honest enough to keep your finished-oil margin healthy.

Chemistries we supply

Individual components & full DI packages

PCMO DI Package (API SP / ILSAC GF-6) HDD DI Package (API CK-4 / ACEA E9) MCO 4T DI Package (JASO MA2) 2T DI Package (JASO FB/FC/FD) ZDDP — primary alkyl ZDDP — secondary alkyl ZDDP — mixed alkyl Calcium sulfonate detergent (TBN 300/400) Magnesium sulfonate detergent Succinimide dispersant (mono / bis / borated) Polymeric VII — OCP Polymeric VII — PMA Star polymer VII MoDTC friction modifier Glycerol mono-oleate (GMO) Phenolic antioxidant Aminic antioxidant PMA pour point depressant Foam inhibitor (silicone & non-silicone)

Typical Performance Targets

Parameter	PCMO 5W-30 API SP	HDD 15W-40 API CK-4	MCO 4T 10W-40 JASO MA2
KV @ 100 °C (cSt)	9.3 – 12.5	12.5 – 16.3	12.5 – 16.3
HTHS (cP, 150 °C)	≥ 2.6	≥ 3.7	≥ 2.9
TBN (mg KOH/g)	7 – 9	10 – 12	7 – 10
Sulfated Ash (%)	≤ 0.8	≤ 1.0	≤ 1.0
Phosphorus (ppm)	600 – 800	800 – 1000	800 – 1200
Treat Rate (% wt)	8 – 11	10 – 13	8 – 11
Compatible Base Stock	Group II/III + PAO blend	Group II	Group II

Typical values. Detailed TDS available on enquiry; actual treat rate validated against your base stock and finished-oil approval target.

Applications

End uses we calibrate for

PCMO — petrol passenger car motor oils, API SN/SP, ILSAC GF-5/GF-6
HDDO — diesel heavy-duty truck & bus oils, API CJ-4/CK-4, ACEA E9
MCO 4T — motorcycle 4-stroke oils with wet clutch (JASO MA2)
2T — two-stroke motorcycle, outboard, chainsaw (JASO FB/FC/FD)
Industrial diesel — gensets, off-highway, stationary engines
Natural gas engines — stationary & vehicular CNG/LNG service
Two-wheeler scooter — JASO MB, low-friction service
Marine medium-speed — trunk piston engine oils

Why Lubechem

Three things you won't get from a generic reseller

Treat-rate honesty. Most of our PCMO and HDD packages run 8–12% lower in treat rate than published specs require — because our parent consultancy formulated them with a real BIS test on the bench. You ship a tighter cost.
Base-oil compatibility intelligence. We carry interaction data for Group I, II, II+, III and PAO blends. Tell us your base stock and we'll tell you which DI version performs best.
Approval test debugging. If your BIS or API sample comes back marginal, our R&D team analyses the result and recommends a chemistry adjustment — at no charge for first-90-day customers.

Engine OilAdditives.

Subcategories

Top products fromeach subcategory.

CNG / LNG Engine

LAP 22301 — CNG Engine DI — Stationary Genset

LAP 22302 — CNG Engine DI — Bus & Vehicular

LAP 22303 — LNG / Dual-Fuel Marine Engine DI

LAP 22304 — CNG Engine Booster — Nitrate Inhibitor

Four-Stroke Motorcycle (4T)

LAP 2260 — 4T Motorcycle DI — JASO MA2 Premium

LAP 2261 — 4T Motorcycle DI — JASO MA2 Economy

LAP 2262 — 4T Motorcycle DI — JASO MA

LAP 2263 — 4T Motorcycle DI — JASO MB Scooter

HDD (Heavy Duty Diesel)

LAP 12007 — HDD DI Package — API CK-4

LAP 12010 — HDD DI Package — API CJ-4

LAP 12050 — HDD DI Package — API CI-4 PLUS

LAP 12161 — HDD DI Package — API CH-4 Economy

High Mileage / Old Engine

LAP 11455 — High-Mileage PCMO DI — Seal-Conditioning

LAP 11521 — Old-Engine DI — Anti-Smoke

LAP 11571 — Old-Engine Booster — Viscosity Boost

LAP 11600 — Vintage / Classic Engine DI

PCMO (Passenger Car Motor Oil)

LAP 11158 — PCMO DI Package — API SP, ILSAC GF-6

LAP 11163 — PCMO DI Package — API SN PLUS

LAP 11167 — PCMO DI Package — API SM Economy

LAP 11182 — PCMO DI Package — ACEA A3/B4

Synthetic Engine Oil

LAP 5704 — Synthetic Engine DI — Full PAO

LAP 5751 — Synthetic Engine DI — PAO/Ester Hybrid

LAP 5754A — Semi-Synthetic DI — Group III Base

LAP 5777 — Synthetic HDD DI — Long-Drain

Two-Stroke (2T)

LAP 2410 — 2T DI Package — JASO FD Premium

LAP 2411 — 2T DI Package — JASO FC Mid-Grade

LAP 2412 — 2T DI Package — JASO FB Economy

LAP 2413 — 2T Outboard DI — NMMA TC-W3

UTTO / STOU

LAP 9325G — UTTO DI Package — JD J20C / M-1145

LAP 9490 — STOU DI Package — Super Tractor Universal

LAP 9491 — Tractor PCMO DI — Light Duty

LAP 9492 — Wet-Brake DI — Tractor Transmission

From wear protection to soot dispersancy — engineered into one balanced package.

Individual components & full DI packages

End uses we calibrate for

Three things you won't get from a generic reseller

Need a sample DI package for a BIS or API approval run?

Where engine oil additives are used

Automotive lubricants

Marine & offshore engines

Viscosity index improvers explained

Other additive families we supply.

Engine Oil
Additives.

Top products from
each subcategory.