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Technical Transmission General

General Transmission issues are varied and may include several causes and ways of treatment. Transmission experts share their knowledge and provide useful tips for the industry people to follow.



Nowadays, there is still no ideal solutions on how to transmit torque from the engine to the drive wheels — actually, there’s not even a universal agreement on the best location for the switching mechanism that controls the ratio changes.

A fleet truck can be easily overloaded if it does not come with the proper powertrain (engine+ transmission) combination, thereby resulting in increased expenditures for maintenance servicing. In this article, we will consider some helpful tips for owners of truck fleets on selecting truck components that have a significant impact on its performance, fuel economy and maintainability.

During regular maintenance services, drivers of cars equipped with automatic transmissions sometimes can notice bubbles on a dipstick when checking a transmission fluid level/condition. As a rule, this symptom indicates certain faults in the transmission operation. In most cases, transmission fluid foaming is caused by abnormal ATF levels.


Today, it may be hard to believe today, but in the 80s, GM amazed the automotive market with cars with remarkable gear shifting mechanisms. These remarkable shifters allowed drivers of automatic cars to shift gears manually.


Most of automatic transmission issues stem from ATF, thus repair professionals pay special attention to ATF and its timely change. If potential risks of lower ATF level are intuitively clear to most of car owners (oil starvation can lead to numerous malfunctions or even failure of the whole transmission unit), the situation with the fluid overflow may be misleading.

Mercedes transmissions are considered by many as a benchmark of quality and reliability, but like any other piece of machinery, Mercedes automatics require regular diagnostics, maintenance services, and professional technicians recommend car owners to avoid aggressive driving, slippages, etc. Otherwise, even the most reliable Mercedes transmissions will get out of order pretty fast.

Automotive engineers have always been involved in a constant search for an innovative solution that can solve the problem of varying the gear between the driving and the driven members in a vehicle automatically and in an infinite number of different ratios. Long before the arrival of continuously variable transmissions (CVTs), engineers had something to offer in this field.

We get used to newspaper headlines such as “Manuals are dying”, “Stick shift is going extinct”, “Stick shift sales keep falling”, but it should not be assumed that the development curve of manual transmissions stopped at 4-5-speed units without any smart technologies. In reality, modern manual transmissions also can be equipped with a variety of remarkable features.

Recently, Top Gear arranged an exciting speed competition between the Tesla Model S Performance and the new Porsche Taycan Turbo S. Despite the fact that the Tesla had an edge in weight and power, the German car came out victorious in the 0-60 sprint. The secret of this result lies in one important powertrain difference between these two great cars, namely the transmission unit.


While cars equipped with manual transmissions gradually become outdated, many car manufacturer still integrate the feature allowing drivers to shift their own gears. How it can be implemented in automatic cars? The answer is simple – easy-to-use and efficient paddle shifters.

Rapidly growing share of automatic transmissions in modern vehicles made it possible to increase the level of comfort on the road, optimize the process of gear shifting and fuel economy, and to implement some features related to the road safety. All these benefits are particularly important on urban roads with heavy traffic. But why designs of automatic transmissions still include a manual mode of operation?

It is well-known that modern automatic transmissions are much more complex than conventional manual transmissions, and therefore in addition to standard driving modes like D (Drive) and R (Reverse) automatics frequently have more additional features and operating modes.

Much like modern automotive trend on shifting from with manual transmissions to more confortable automatics, in the first decade of the last century there was a demand for a semi-automatic transmission that operated without the driver involvement. And automotive engineers of that time had some interesting engineering solutions to offer.

With winter approaching, car owners perform necessary measures to prepare their cars for cold weather and icy roads. However, some inexperienced owners of cars equipped with automatic transmissions frequently do not know how cold weather may affect transmission units and frequently disregard such a simple procedure as a transmission warm-up. In this article, we will consider how ignoring of the automatic transmission warm-up may affect your vehicle.

Car manufacturers have always been looking for ways to make their cars more cost-efficient and customer-friendly, developing less expensive car components (engine, gearbox, etc.) in hope to increase the take rate of their products. In this article, we go back to 1968 when Chevrolet released its semi-automatic transmission named “Torque-Drive”.