What is the Difference Between AWD and 4WD?
January 29, 2021
People love to throw the words all-wheel and 4-wheel drive around, but what is the difference and what do they mean?
Table of Contents
What is AWD?
AWD or all-wheel drive is a system that powers all four wheels when driving. This is made specifically for cars and SUVs and is not necessarily ideal for off-road performance but is optimized for on-road use.
There are two kinds of AWD systems; full-time and part-time. A full-time AWD system will always be powering all 4 wheels, all the time. Whereas a part-time system is in 2WD until you are in a slippery or poor traction situation, then it will move into AWD. This will end up saving you gas and in-turn, money.
Pros of AWD
Mindlessly works for you
Great for on-road use
Great for cars and SUVs
Safety
Cons of AWD
Considered inferior to 4WD
Not made for off-road driving
Not optimized for trucks
Increase cost of the vehicle
Reduces fuel economy
What is 4WD?
Found in trucks generally. 4WD or 4-wheel drive, also is a system that powers all 4 wheels, hence the name. This system will be more robust than AWD and optimized for off-road driving.
The most significant thing that a four-wheel-drive does is send power to all four wheels equally. Having equal power across all four wheels makes easy work of low-traction situations.
Similar to AWD, 4WD also has full and part-time systems to have it working all the time or only sometimes when it is slippery or on rough terrain, etc. This can be automatic or manual.
Usually driven by a mechanical connection, 4WD systems use a series of front, center, and rear differentials, along with transfer cases and couplings to provide torque to all four wheels. These systems have become more advanced over the years.
Pros of 4WD
Best in adverse weather conditions
Best for off-roading
Optimized for trucks
Maximum power
Safety
Does the work for you
Cons of 4WD
Increase cost of the vehicle
Can make the ride stiffer
Adds weight
Worsens fuel economy
Not optimized for SUVs (if that’s what you drive)
Not optimized for on-road driving (if you don’t go off-road)
Which is Better?
This is all dependent on what kind of vehicle you have or want, and what kind of terrain you want to drive on along with the conditions that you drive through. Take all the information here and decide what is best for you.
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