1993 Chevrolet S10 Pickup Owner's Manual - Page 294

Service & Appearance Care When It's Time for New Tires K1656 Oneway to tell when it's time for new tires is to check the treadwear 2/32 inch (1.6 mm) or indicators,whichwillappearwhenyourtireshaveonly less of treadremaining. You needanewtire if: You canseetheindicatorsatthreeplacesaroundthetire. You cansee cord orfabricshowingthroughthetire'srubber. Thetread or sidewall is cracked,cutorsnaggeddeepenoughtoshow cord or fabric. Thetirehasabump,bulgeorsplit. Thetirehasapuncture,cut,orotherdamagethatcan'tberepaired becauseofthesize or location of the damage. Buying New Eres To find out what kind and size of tires you need, look at the CertificationRire label. The tires installed on your vehicle when it wasmew had a Tire PerformanceCriteriaSpecification(TPCSpec)numberoneachtire'ssidewall. Whenyougetnewtires,getoneswiththatsameTPCSpecnumber.That way, your vehicle will continue to havetiresthataredesignedtogiveproper endurance,handling,speedrating,traction,rideandotherthingsduring If yourtireshaveanall-seasontreaddesign, normalserviceonyourvehicle. theTPCnumber will befollowedbya "MS" (formudandsnow). 6-46