Continuously Variable Transmissions are Gaining Popularity

Continuously Variable Transmissions (CVT) are not a new invention, and yet it’s only been in recent years motorists have become more familiar with them.

In 1958, the small Dutch manufacturer van Doorne Automobiel Fabriek (DAF) introduced the DAF 600. It was one of the first mass-produced cars with a CVT, but it was not a success. In 1987 Subaru rolled out the Justy, also built with a CVT. However, it too was a market flop for various reasons including concerns about CVT reliability, as well as the noise they omit.

Despite the bad rap they sometimes get, CVTs do provide advantages including a significant boost to an engine’s fuel efficiency when accelerating, and they reportedly cost less than modern eight- and nine-speed automatic transmissions.

What Is a CVT?

Most automatic transmissions rely on gears to operate. CVTs, on the other hand, don’t have any gears at all. They operate using a system of variable pulleys connected by a belt, hence the alternative moniker, the pulley transmission.

When Japanese automaker Nissan launched its Murano crossover with a CVT in 2003, motorists started to warm up to them. Nowadays, CVTs are increasingly common on our roads. For instance, Nissan offers the CVT on many of its vehicles including the Murano, Altima, Maxima, Rogue, Sentra, and Versa. CVTs can also be found in some Audi A4 models, Jeep Compass and Patriot, BMW Minis, Mercedes-Benz Class Bs, select Honda Civic Hybrids, Mitsubishi Lancers, and some Toyota models. Chrysler and Ford both offered vehicles with CVTs but switched gears after a while due to consumers’ perception CVT reliability was questionable.

CVT Maintenance and Repair Advantages and Disadvantages

In general, CVTs are no more or less reliable than traditional automatic transmissions. But it may be their application are better suited to smaller cars than larger vehicles.

With that said, and when compared to conventional sealed automatic transmissions which can run for up to 100,000 kilometres or more before maintenance is required, proactive preventative maintenance on some CVT models may require frequent transmission fluid changes. Heat is the CVT’s biggest enemy. Thus there are specific oils required for these transmissions.

Do you have questions about CVTs or any other kind of transmission? Visit the Mister Transmission service centre nearest you and talk to our expert technicians to get the information you need.