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Molybdenum Friction Modifier (MoDTC / MoDTP)

  • Other
  • CAS 68412-26-0
  • IUPAC: molybdenum dithiocarbamate / molybdenum dithiophosphate

CarCareTruth tracks Molybdenum Friction Modifier (MoDTC / MoDTP) (CAS 68412-26-0) as a car-care ingredient.

Molybdenum friction modifiers are not classified as significant health hazards in finished oil additive concentrations. Signal word typically WARNING from the overall formulation, not driven by the molybdenum component.

Molybdenum friction modifiers (typically MoDTC — molybdenum dialkyldithiocarbamate, or MoDTP — molybdenum dithiophosphate) reduce boundary-layer friction in engine oil systems by forming a low-friction tribofilm on metal surfaces. They are commonly paired with ZDDP in break-in oil additives and high-performance motor oils to provide both anti-wear protection (ZDDP) and friction reduction (moly).

heavy_metal_containing: true — contains molybdenum. Not classified for aquatic toxicity at typical concentrations, but drain-destined via used oil disposal.

Health & environment profile

VOC
no
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
no
Biodegradable
no
Bioaccumulative
no
Persistent
yes
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
3/5
Purpose: Reduces boundary-layer friction on metal surfaces; commonly used in engine oils and break-in additives alongside ZDDP

Common questions about Molybdenum Friction Modifier (MoDTC / MoDTP)

What is Molybdenum Friction Modifier (MoDTC / MoDTP) used for in car care?
Reduces boundary-layer friction on metal surfaces; commonly used in engine oils and break-in additives alongside ZDDP
Is Molybdenum Friction Modifier (MoDTC / MoDTP) a VOC?
No. Molybdenum Friction Modifier (MoDTC / MoDTP) is not classified as a volatile organic compound (VOC).
Is Molybdenum Friction Modifier (MoDTC / MoDTP) on California's Proposition 65 list?
No. Molybdenum Friction Modifier (MoDTC / MoDTP) is not on California's Proposition 65 list.

No products on file contain this (yet)

Related

Health and environment notes translate the manufacturer Safety Data Sheet, the GHS classification, and authoritative regulatory listings (California Prop 65, EPA). Not medical advice. They describe the ingredient itself; whether a hazard applies to a finished product depends on its concentration and how it's used.