Glycerol Monooleate (GMO) Friction Modifier
CAS Number: 111-03-5
Glycerol monooleate (GMO) is a cost-effective, ashless friction modifier derived from oleic acid and glycerol, widely used in automotive and industrial lubricants to reduce stick-slip behavior and improve fuel efficiency. Its polar head group adsorbs strongly onto metal surfaces, forming a boundary-lubrication film that reduces the coefficient of friction in low-speed, high-load contacts. GMO is fully biodegradable and compatible with both mineral and synthetic base oils.
Technical Specifications
| acid value | ≤2.0 mg KOH/g |
| appearance | Light yellow to amber liquid or semi-solid |
| hydroxyl value | 145–175 mg KOH/g |
| flash point (COC) | >200 °C |
| saponification value | 170–185 mg KOH/g |
| GMO content (monoglyceride) | ≥90 wt% |
Applications
- Automatic transmission fluids (ATF) to control lock-up clutch shudder
- Manual transmission and axle oils for improved shift feel and efficiency
- Passenger car engine oils as ashless friction modifier supplement
- Industrial hydraulic and slide-way oils requiring stick-slip prevention
- Metalworking fluids as boundary lubrication additive
Key Features
- Ashless, metal-free formulation contributes no ash-forming elements to combustion
- Strong polar adsorption on metal surfaces provides effective boundary lubrication
- Biodegradable and derived from renewable raw materials meeting sustainability goals
- Cost-effective friction modifier with broad compatibility across base oil types
Grade Variants & Supplier Reference
Specific grades available from leading Chinese-market suppliers. Spec sheets and lead-time vary per grade — request a quote to confirm availability.
Spec sheet not published — request TDS via inquiry form.
Generic Richful FM (chemistry not disclosed on public page — likely GMO or ester-based, confirm with TDS).
View on supplier site →Big 4 Equivalents Cross-Reference
Approximate functional equivalents from leading global additive houses (Lubrizol, Infineum, Afton Chemical, Chevron Oronite). Chemistry tier, treat rate, and additive synergy may differ — always verify against the supplier TDS before formulation lock-in. Note: friction modifier class spans GMO esters, MoDTC, and amide chemistries — Big 4 codes below cover the GMO-equivalent line.
- L-3950 (GMO-based)
- L-7036 (organic FM blend)
- F-7720 (MoDTC)
- F-3403 (organic)
- HiTEC 3414 (organic)
- HiTEC 7186 (MoDTC)
- OLOA 9605 (MoDTC family)
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CAS Number
111-03-5
Category
Automotive Lubricant AdditivesAvailability
In StockSample
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