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Is it ok to use two same sized snow tires with equal amounts of tread but different tread patterns on the front of a car?
While it is good to use tires with the same tread and sizes, it is possible to use tires with different tread patterns, though you should be careful as the performance of the two tires may be different, causing your car to be unbalanced, endangering your passengers.
I don't know which of the two tires are winter and which are summer It has been 3 months since summer started should I change tires in case I am using the wrong ones?
Typically, Winter tires have a more aggressive tread design to enable better traction in snowy conditions. If you are unsure about them now, it may be a little late anyhow because Summer is only going to be around another few months. Snow tires do wear faster than all season tires though, so keep that in mind. They usually have a softer compound. To tell how much of treadlife you have left, use a penny upside down inserted into the tread. If you can see Lincoln's hair then you need tires. A better test may be to use a quarter and do the same test. If you see Washington's hair then you have time to look for new tires before they get real bad or even illegal.
What test checks for adequate tire tread?
It is called a "tread depth measurement" There is a special tool for this or you can use a caliper set that will do depth measurement or a "Machinist rule" A very easy test is to take a Lincoln penny and insert it between the treads head down. If you can see the top of lincoln's head your tires need replacing. This means the tread is worn to below 2/32" which is the danger level. The tires have very little grip and are prone to hydroplaning when worn this much.
When do you need new tires on your car?
When the tires wear down to the wear bars. Wear bars are a set of raised lines located in the main grooves, between the tread, that run around the circumference of the tire(usually 3 or 4). These bars indicate when the tread is down to the min. (2/32nds). You will see a line form across the grooves when replacement is needed. 2/32nds is the minimum tread depth, aqua planning becomes a big concern at/below this tread depth. Another way is to use a penny and if Lincoln's head is hidden by tread, the tire is still ok, if it is not, the tires need replacing. Other factors are if the tire is dry rotted( rubber is cracking like a dry lake) of there is signs of damage, bubbles, deep cuts, feathering, cupping.
What is The single greatest cause of tire damage?
Tire wear is the most common "damage". The most common cause is use, but the greatest cause of tire wear is an improperly aligned vehicle. This is known as excessive tire wear. Excessive tire wear is wear that is in excess of what would be expected for the actual miles of use. Another cause of excessive tire wear (even on a properly aligned vehicle) is improper tire inflation. Over inflated tires cause the tire to wear in the center of the tread and under inflated tires will wear the outer portion of the tread. To focus more on damage as a single incident verses wear as an ongoing process. Severe impacts such as hitting a curb or a large pothole would top the list. The lower a tires aspect ratio the greater the potential for damage from this type of impact. The question needs clarification.
Do tires have to have the same tread pattern?
No. It depends on the purpose of a tyre e.g. one designed for use for high performance will have smaller void ratios to ensure more rubber is in contact with the road. Related link:http://en.wikipedia.org/wiki/Tires#Tread
Which automotive tires use natural rubber?
Most tires made today use a combination of natural rubber and synthetic rubber to achieve the maximum tread life and safety rating.
What should I check when buying cheap tires to ensure safety?
It depends on whether they are new or used. For new tires, check the warranty and make sure that it was designed for your type of vehicle. For use cars, make sure they don't have any plugs in them and have good tread wear left.
When should winter tires be changed?
Winter tires should be changed out when the tread has been worn down to around 1.5mm to 1.6mm in thickness, after they have been worn down more they are considered worn out. To measure the tread of ones tires one should use a tire gauge which can be bought at websites such as amazon.
How do you measure the tread depth for motorcycle tires?
You can use a penny for that. Put in between the threads then mark and measure the depth on the penny.
Can trailers use different tires as long as the treads are the same in each tire-assembly OR same tread per hub?
Yes, as long as the tread widths and tire specifications are all equal.
When is it time to get new tires?
The following website goes into details on how to use a penny to verify if your tires have a legal and safe amount of tread. http://www.reviewsonline.com/auto/TT03-1.htm
