Alltranz – just cool it

New and tested 4WDs

Transmissions love their coolers

The automatic transmission is one of the most significant inventions in the automotive industry’s history, making driving much easier and helping with better fuel efficiency.

Transmission fluid is an integral part of the transmission, lubricating the numerous moving parts inside the transmission. The fluid absorbs heat and as it heats up it becomes less effective in its lubrication.

Every year thousands of transmissions fail due to the overheating of the fluid. Once the transmission fluid hits 93 degrees C, the fluid starts to break down. This means there is less lubrication of the components and eventually can cause failures of critical components.

This is where a transmission cooler becomes an important component of the vehicle. Some vehicles may come with a built-in cooler which is often included within the radiator. But when towing, carrying heavy loads, or putting extra stress on the transmission in any way these are often not up to the task.

Fitting a quality external aftermarket transmission cooler will help keep the fluid at a much better operating temperature, helping keep the transmission in good working order. Along with regular servicing, this will help avoid premature failures of important components.
 

Publishing Information
Page Number:
29
Contact Us
NZ4WD covers a range of topics of interest to the 4WD vehicle buyer & driver. We're dedicated to providing a wide range of information covering vehicle selection, accessories & upgrading, 4WD clubs & sport, adventure & track stories an

Related Articles
Ford’s mighty Ranger XLT revisited
‘Ford Tough’ is the message that greets you on the digital instrument cluster when you climb behind the wheel of a new Ranger, and it’s a statement that hasn’t come lightly. During testing the Ranger...
A useful Amarok addition
With a swanky, high spec interior and a surprising level of refinement and driver assist technologies, the petrol-powered VW Amarok is an interesting proposition. It adds a completely new ‘vibe’ to...
Listen up: the largest Defender is a real offroader
Those who love ‘real’ off-roading listen up. As NZ4WD found when we named the shorter Defender our 4WD of the year, the new Defender remains a proper 4WD. This doesn’t mean living with an unrefined,...