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Achieving the extraordinary through proven performance

ExxonMobil is proud to be the leading supplier of base stocks, and our product portfolio including Group I ,II, IV and V, with supply reliability supported by our global footprint and technical support ensure that we consistently deliver high-quality products and services. In a world of evolving lubricant demands, we are committed to addressing your business's formulation needs — today, tomorrow and for years to come.

Tailored to meet your needs across applications

Transmission oil

Increasing demand for fuel economy continues to impact the transmission lubricant market, as does the growth of electric vehicles.

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Engine oil

Today’s engine oil market revolves mainly around one goal – sustainability. Lowering CO2 emissions to meet stricter regulations requires oils that enhance fuel economy and last longer.

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Electric vehicle fluids

The EV fluids market continues to evolve as OEMs and lubricant manufacturers explore ways to meet the challenges of this new technology. We’ll likely see rapid changes in the future within this market as technology solutions emerge.

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Grease

Compared to mineral oil-based grease, synthetic greases provide enhanced performance in wider temperature ranges, at increased operating speeds, under increasing loads and power densities, and in equipment located in more remote areas that require longer product life.

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Industrial gear oil

The marketplace is demanding longer drain intervals, stronger protection against wear and micropitting, as well as better gearbox reliability, even as operating loads and temperatures increase.

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Automotive gear oil

Lowering CO2 emissions has become the top priority in today’s automotive gear oil marketplace. Formulators must satisfy their customers’ needs to minimize emissions through enhanced fuel economy while maintaining wear protection.

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Group I Base Stocks

Our Group I base stock slate provides lubricant blender with the base oil interchange and viscosity-grade read-across capabilities. This allows for greater supply chain flexibility and simplified qualification testing requirements.

Group I CORE™

CORE™ and specialty Group I base stocks, designed to offer broad blending coverage with performance capabilities in applications ranging from engine oils to industrial and marine lubricant.

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Group II base stocks

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EHC™ Group II/II+ EHC™ base stocks, designed to meet a wide spectrum of customer performance objectives and evolving industry requirements.

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EHC 340 Max™

Part of our global Group II base stock slate for formulation and qualification of automotive and engine oil lubricants. Has exceptional low-temperature performance and oxidative stability.

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EHC™ 50/120

EHC™ 50 and EHC™ 120 base stocks can be used together to meet the requirements of the most high-demand ACEA and API lubricants.

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EHC™ 50/110

With excellent low-temperature performance, low volatility and high saturates, ExxonMobil’s EHC™ 50 and EHC™ 110 base stocks can help you meet, and exceed, the requirements for the most in-demand lubricants.

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EHC™ 46/65

With base oil interchange and viscosity-grade read-across capabilities, our EHC™ 45 and EHC™ 65 products offer increased flexibility, broad blend coverage and simplified qualification testing.

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Group IV base stocks

SpectraSyn™ synthetic PAO base stocks offer a full range of viscosities to meet performance demands in extreme temperatures, ensuring fluidity for both synthetic and blended lubricants.

SpectraSyn™ HiVis PAO

High viscosity base stock especially suited for industrial oils requiring high stability under harsh operating conditions.

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SpectraSyn™ Low Vis PAO

Low viscosity base stock offering low-temperature fluidity, low volatility and improved thermal stability.

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SpectraSyn Elite™ mPAO

High-viscosity metallocene polyalphaolefin base stock provides high performance at a wide temperature range and exceptional low-temperature properties.

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SpectraSyn™ MaX PAO

Next-generation low-viscosity, low-volatility base stock designed to provide fuel economy, energy efficiency and long drain intervals.

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SpectraSyn™ Plus PAO

Advanced low-viscosity synthetic base stock for low volatility and low-temperature fluidity to produce advanced lubricants.

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Group V base stocks

Our broad portfolio of advanced technology synthetic base stocks deliver the blending flexibility you need to formulate innovative lubricants for today’s demanding marketplace.

Esterex™ esters

Organic esters are well-suited as a blend component for additive solvency, seal compatibility or biodegradability.

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Synesstic™ AN

Alkylated naphthalene base stock often used as blend component for additive solvency, seal compatibility and hydrolytic stability.

Product data sheet

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Base stock categories

Learn about the five base stock groups and how they meet specific performance goals.

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Synthetic lubricant base stocks formulation guide

Formulators are asked for more sophisticated advanced lubricants every day. This guide can provide you with a head start.

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ExxonMobil Synthetic base stocks Brochure - Innovative lubricants start here

Advanced technology synthetic base stocks that deliver the blending flexibility you need to formulate innovative lubricants for today's demanding marketplace. Updated to include the SpectraSyn MaX PAO

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ExxonMobil base stocks

Achieving the extraordinary through proven performance

Tailored to meet your needs across applications

Transmission oil

Engine oil

Electric vehicle fluids

Grease

Industrial gear oil

Automotive gear oil

Explore our product portfolio

Group I Base Stocks

Group I CORE™

Group II base stocks

EHC 340 Max™

EHC™ 50/120

EHC™ 50/110

EHC™ 46/65

Group IV base stocks

SpectraSyn™ HiVis PAO

SpectraSyn™ Low Vis PAO

SpectraSyn Elite™ mPAO

SpectraSyn™ MaX PAO

SpectraSyn™ Plus PAO

Group V base stocks

Esterex™ esters

Synesstic™ AN

Base stock categories

Featured resources

Synthetic lubricant base stocks formulation guide

ExxonMobil Synthetic base stocks Brochure - Innovative lubricants start here

Related products & solutions

Basestocks

Synthetic base stocks