Best Auto Repair, Pensacola

CONTACT US
FacebookYelp - TransparentGoogle My Business White

850-492-1221

Call us, we're here to help!

850-492-1221 | 13026 Sorento Rd

AUTONET TV

AUTONET TV, Pensacola, FL

What's in a Number? (What Tire Numbers Mean)

Posted October 11, 2020 7:20 AM

You've probably never paid much attention to the writing on the sides of your tires, but they contain a wealth of information.  There's a long combination of letters and numbers that can tell you a whole lot about what tires your vehicle was designed to be riding on.  Let's check out this example found on an SUV: P245/70R17 108T.

The first letter, P, means it's intended for passenger vehicles.  If there's no letter, it means it's a metric tire.  If there's an LT at the beginning or end that means a tire designed for light trucks.

Moving on to our example, the 245 shows how wide the tire is in millimeters from sidewall to sidewall.  The number that follows in our example, 70, means the height of the tire is 70% of its width.  The letter after that in our example, R, describes the type of tire (on this vehicle, radial).  Following that is the diameter in inches, in our SUV example, 17 inches. 

How much load the tires' sidewalls are designed to take is what that next number is all about (108 in our example).  The higher the load index, the more weight the sidewalls can take.  And the last letter is the speed rating of the tire, in our example, T.  The further along in the alphabet that letter is, the higher its speed rating.  So now you know what those letters and numbers mean.  But why are they important?

When you are getting ready to replace those tires, those numbers are telling you what the original equipment was when your vehicle was new.  Sticking with the same rated tires is always a good idea.  If you don't know what you're doing, trying different sized tires and wheels can cause real issues when it comes to performance and safety, considering all the computerized systems now found on vehicles.  When in doubt, consult your service advisor when it comes to buying new tires.  He or she knows what those tire numbers and letters mean… and a whole lot more.

Key Auto Hospital
13026 Sorento Rd.
Pensacola, FL 32507
850-492-1221
http://www.keyautohospital.net



Search



Archive

November 2018 (18)
December 2018 (5)
January 2019 (5)
February 2019 (4)
March 2019 (5)
April 2019 (4)
May 2019 (4)
June 2019 (5)
July 2019 (4)
August 2019 (4)
September 2019 (5)
October 2019 (4)
November 2019 (4)
December 2019 (5)
January 2020 (5)
February 2020 (4)
March 2020 (5)
April 2020 (4)
May 2020 (5)
June 2020 (4)
July 2020 (4)
August 2020 (5)
September 2020 (4)
October 2020 (4)

Categories

Air Conditioning (4)Alignment (4)Auto Safety (2)Automotive News (3)Battery (4)Battery Replacement (1)Brake Service (1)Brakes (5)Cabin Air Filter (3)Check Engine Light (1)Cooling System (4)Diagnostics (1)Drive Train (1)Engine Air Filter (1)Exhaust (2)Fluids (4)Following Recommended Intervals (2)Fuel Economy (2)Fuel Saving Tip: Dirty Oil (1)Fuel System (13)Headlamps (1)Inspection (1)Keys to a long lasting vehicle (3)Maintenance (12)Making Your Vehicle Last (1)Monitoring System (2)Oil Change (2)Parts (3)Safety (2)Serpentine Belt (1)Service Intervals (2)Service Standards (2)Shocks & Struts (3)Steering (4)Suspension (1)Timing Belt (2)Tires (1)Tires and Wheels (14)Transfer Case (1)Transmission (2)Warranty (1)What Customers Should Know (7)Wheel Bearings (1)Windshield Wipers (2)

What our clients say about us?

Reviews and comments from our satisfied customers