The automated car washes which are typically found in most gasoline/gas stations and forecourts are not designed to safely or effectively clean your car in any way, but to allow many vehicles to pass through it in the shortest possible time, given greater profit margins for the owner.
For starters, there is no real pre-rinse or pre-wash scene to remove dust before your car enters. Large rollers spinning at high revs start to “wash” your car and simply scrub any dirt and sand particles that have not been removed from your car’s paint and surfaces.
It should also be noted that before your car is entered, a large number of other dirty vehicles have been through the same process so that the grain and contaminants picked up from these cars by the rollers is now also rubbed all over your car.
Rollers also have the potential to inflict other damage to your car by pulling on pieces of trim, damaging mirrors, radio antennas and spoilers for example.
You don’t know what products are used on your car if it is taken by an automatic car wash. Usually, it will “clean” your car with strong, loose chemicals that remove any protection that may have been applied to your vehicle and can even damage the delicate surfaces of your vehicle.
After your car has been washed in there is usually a large blower that attempts to dry your vehicle, but inevitably in the time it takes to complete the process there will still be a lot of water left on your car. If you then shoot towards the sun, after this process, the water and hard chemical residue will dry up on cars and paint your surfaces, leaving unsightly marks that can be difficult to remove.
When you consider the cost of using an automatic car wash it is no wonder that the treatment received is basic quality and low. Its best to avoid this type of car wash, even if it means your car is not cleaned, as they will almost certainly inflict more damage on your car than leaving the dirt and contaminants sitting on it for a few more days. until you are able to clean it well yourself.
Washing your car with your hands can offer a more thorough job than automated car washes, but unfortunately, they too suffer from similar disadvantages. Hand car washes like automatic washes are not necessarily designed to safely clean your car and achieve the best possible results, but to ensure that all car enters and leaves within strict time constraints for owners to make a profit.
This is usually why there is another person doing each part of the washing process, and all of this can seem effective it’s most likely to damage your car in the process.
Like an automatic car wash when you enter a car hand wash products and tools have been used to clean a number of dirty cars before yours and not having been cleaned sufficiently in between (if any).
A hand car wash cannot afford to fill wash buckets/troughs for each vehicle that enters again so you are getting contaminants and grits worked together on your car’s paint and surfaces.
The majority of car hand washes also use sponges and buffs for washing and drying instead of washcloths and microfiber towels, inflicting more swirl and light scratches. Again it’s best to avoid taking your car through a used car wash but instead leave it for a bit longer until you are able to properly and safely clean yourself or call a professional car detailer to clean it for you..