Lubricant Industry News
Solving abnormal noises caused by wear on car seat rails
2026-07-28
Discover how automakers use lubricants to enhance cabin quietness and elevate the overall driving and riding experience.
In the era of new energy vehicles, consumers increasingly demand superior cabin quietness, ride smoothness, and a premium interior experience. While many automakers have optimized chassis performance, sound insulation, and interior materials, they often encounter after-sales issues caused by noise from seat rails.
Vehicles frequently face common problems such as jerky, unsmooth movement during electric seat adjustment, accompanied by harsh friction sounds. Seat movement slows down in cold winter weather, while abnormal noise intensifies after exposure to intense summer sunlight.
The root cause is not poor machining precision of the rails, but rather the inability of inferior, standard greases to withstand the demanding operating conditions of new energy vehicles.
● Poor temperature resistance: It hardens and becomes brittle at low temperatures and flows or spatters at high temperatures, resulting in unstable performance throughout the year.
● nsufficient noise suppression: Dry friction between metal and plastic parts generates annoying noise, reducing the premium feel of the interior.
● Poor material compatibility: Low-grade greases can corrode plastic and rubber parts, accelerating internal component degradation.
● Weak adhesion: The grease tends to detach after frequent seat adjustments, leading to short lubrication intervals and high maintenance costs.
New Energy Vehicles & Traditional Internal Combustion Engine Vehicles
Compared to traditional internal combustion engine vehicles, new energy vehicles (NEVs) utilize smarter, more precision-engineered seat rail structures that incorporate a combination of metal, glass fiber-reinforced plastic, and elastic rubber fasteners. Most general-purpose greases are not formulated for such composite materials; consequently, they often exhibit a sharp increase in viscosity at low temperatures and base oil separation at high temperatures. This explains why abnormal interior noises frequently occur within 3 to 12 months of a new vehicle leaving the factory. Furthermore, the superior overall airtightness and sound insulation of NEVs significantly amplify the subtle noises generated by rail friction, thereby imposing more stringent requirements on the grease regarding noise reduction, adhesion, and weather resistance.
Leveraging 20 years of expertise in specialty lubricant manufacturing, FRTLUBE developed the PG302 automotive seat rail grease to address these key industry challenges. It is ideally suited for seat rails in passenger cars, MPVs, and smart sliding mechanisms.
PG302 automotive seat grease offers a wide operating temperature range, excellent lubrication, superior wear resistance, and effective noise reduction.
1.Exceptional temperature stability: Maintains consistent performance between -40°C and 150°C, ensuring reliability in extreme cold, intense heat, direct sunlight, and frosty conditions.
2.Excellent noise reduction and wear resistance: A specialized quiet-operation formula effectively minimizes noise from metal-on-metal friction, ensuring ultra-smooth and silent seat adjustment while enhancing overall cabin comfort.
3.Full material compatibility: Safe for use with steel, aluminum alloys, plastics, and rubber; non-corrosive and residue-free, providing comprehensive protection for the rails and surrounding internal components.
4.Superior adhesion and resistance to displacement: A high-adhesion formula prevents grease loss during frequent back-and-forth adjustments, ensuring long-lasting lubrication and reducing maintenance frequency.
5.Eco-friendly and fully compliant: Meets EU RoHS standards; non-toxic, odorless, and free from harmful volatile substances, safeguarding the health of drivers and passengers.
FRTLUBE provides one-stop lubrication solutions.
FRTLUBE products are designed for the new energy vehicle industry; they have passed hazardous substance testing and rigorous low-temperature performance verification (down to -40°C), ensuring stable operation in extreme cold. All products hold authoritative certifications—including ISO9001, IATF 16949, RoHS, and REACH—and fully comply with global export standards.
FRTLUBE provides automotive manufacturers and component suppliers with one-stop, customized lubrication solutions, including free sample testing, professional product selection guidance, custom formulations, and volume supply services. Our products are widely used in automatic sliding rails, automotive seat tracks, and interior sliding components, fully meeting the inspection standards of both domestic and international automotive companies.