![]() At low speed, the engine turns a small gear which is connected to a larger gear that turns the wheels via other transmission components. How an automatic gearbox worksĪ normal automatic gearbox uses gears to match engine speed to road speed. This article uses plain English to explain how a CVT works, why manufacturers are using them and how driving a car with one takes a little getting used to. ![]() The most obvious application for a CVT is when you’re trying to ensure maximum fuel efficiency, hence why Subaru has paired Boxer engines and all-wheel drive (all-wheel drive adds weight and can affect fuel consumption driving up the relative fuel consumption of a Subaru when compared with a non-AWD SUV in the same segment) with a CVT. ![]() Rather, the CVT allows the vehicle’s engine to run at its most efficient revolutions per minute (RPM) for a range of vehicle speeds. For all your transmission needs in the Central Valley, call Ralph’s Transmission in downtown Modesto at 209.526.1909 or schedule your next service appointment online.IN A NUTSHELL, a continuously variable transmission, or CVT, doesn’t offer fixed gear ratios like a either a manual gearbox, automatic transmission or a DSG (Direct Sequential Gearbox, a newer type of auto). Whether you have a continuously variable transmission (CVT) or a standard automatic/manual transmission, you need service and repairs from a transmission specialist who will get the job done right. In some cases, it can actually damage the transmission beyond repair if not replaced as soon as possible. This is mistake we see often at Ralph’s Transmission when another mechanic has unwittingly put regular automatic transmission fluid in a CVT transmission and it leads to performance issues. If CVT fluid is not installed, you will likely encounter significant transmission problems over time. It is very important to know that CVT transmissions use a different type of transmission fluid compared to standard automatic or manual transmissions. Using the Proper Fluid for Your Transmission All transmissions require regular maintenance, especially when it comes to cleaning the transmission pan and changing out the transmission fluid, gasket and filter periodically to maintain optimal performance. Older CVT transmissions may experience problems and it takes a transmission repair expert to identify the problems and recommend the repairs. This is why so many vehicle manufacturers are using them in their current and future vehicle designs. However, the good news is that CVT technology has gotten really effective as components have been refined over the years. Early problems with CVT designs have given these types of transmissions a bad reputation. And of course, the more complex the system, the more complicated the repairs can be. Unfortunately, some of the early CVT designs are prone to problems over time, and additional maintenance/repairs are often required. Some of the advantages of a continuously variable transmission include:Ĭons of Continuously Variable Transmissions As a driver, you don’t feel the shifts and acceleration/deceleration is much, much smoother. This means the gear ratios are unlimited and the vehicle is, in theory, always operating at maximum efficiency. CVT transmissions don’t use a traditional gear box like standard automatic or manual transmissions. ![]() In this article, we want to explain the primary differences between automatic and CVT transmissions, so you can be better informed as a vehicle owner.Ĭontinuously variable transmissions have been used by auto manufacturers since the mid-1990s, especially as hybrid vehicles and other fuel-saving technology evolved. Some sport vehicles and trucks may still offer manual transmissions, but that’s a different story. If you buy a new car, there is a very good likelihood that it will have a continuously variable transmission (CVT) rather than a standard automatic transmission (AT). ![]()
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