What Every Shop Needs to Know About Timing Belt in Oil Technology

by | Mar 4, 2026 | 0 comments

(SPONSORED CONTENT)

As vehicles continue their evolution, the components under the hood do as well. One innovation that should be on your radar is timing belt in oil technology.

Unlike traditional dry timing belts, a timing belt in oil runs internally, immersed in engine oil behind the front cover. Invented by Dayco as a way for OEMs to reduce friction, minimize noise and improve fuel efficiency, these belts are found in many late model engines including Ford EcoBoost, Stellantis PureTech, and more. And while the technology may seem new, the vehicles equipped with it are now ripe for proper inspection and service.

To meet this coming demand, Dayco recently launched the industry’s first timing belt in oil line. Engineered to meet OE material and performance standards, new part numbers cover oil pump drive belts on Ford and Lincoln vehicles with turbocharged, timing chain driven engines.

The Basics of Belt Wear and Why Service Demand is Growing

Because TBIO operates in oil, it is engineered with a highly specialized composition. Over time, heat, oil quality and exposure to contaminants cause belt degradation.

Several drivers may not be aware their vehicle has a timing belt in oil, or they might assume it lasts the life of the vehicle. But all timing belt in oil systems will require replacement. Intervals vary by vehicle manufacturer but most often fall between 150,000 and 240,000 kms, so it is important to educate motorists. They need to know this belt exists, that it can wear out over time and more importantly, that avoiding replacement can be extremely costly.

  • Warning Signs of Wear: As the belt wears, it can shed tiny pieces into the oil, restricting oil pickup screens and lowering pressure.
  • Consequences of Belt Failure: Dayco’s new belt applications drive the oil pump –- so failure of this type of belt would mean the engine is oil deprived and significant damage could follow shortly after.

Capture New Revenue with Preventative Maintenance

As more TBIO-equipped vehicles enter the high-mileage window, demand for qualified replacement will increase, which presents today’s garages with an important responsibility and a massive opportunity. Being prepared allows you to protect your customers’ vehicles with OE-quality replacement belts while capturing a growing, high-value maintenance market.

Visit Dayco for additional product details, or watch their timing belt in oil video now.

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