2018 Chevrolet Silverado 2500HD Tire Size & Pressure Guide

Quick Answer

• OEM Tire Size: LT265/70R17, LT265/60R20, LT245/75R17
• Recommended Cold Tire Pressure (Door Placard): 60-80 PSI (depending on gross vehicle weight rating and specific tire)
• Bolt Pattern: 8x180mm
• Wheel Size: 17x7.5", 18x8", 20x8.5"
• Load Index/Speed Rating: Load Range E (121/123S, 120/117R, etc. depending on specific tire and trim)
• Spare Tire Size: Matches OEM tire size (often a steel wheel version)
• TPMS Frequency: 315 MHz

Tire Sizes by Trim

Note: Specific tire pressure can vary based on the vehicle's Gross Vehicle Weight Rating (GVWR) and the actual tires installed. Always refer to your vehicle's door placard for the most accurate information.

Recommended Replacement Tires

When it comes to replacing tires on your 2018 Chevrolet Silverado 2500HD, durability, towing capability, and all-weather performance are key. Here are a few popular options that provide excellent performance for heavy-duty trucks:

• BFGoodrich All-Terrain T/A KO2: (Premium Tier) An industry favorite for its exceptional off-road traction and impressive longevity. Great for drivers who split their time between pavement and rougher terrain.
• Michelin LTX A/T2: (Premium Tier) Known for its quiet ride, excellent wet and dry traction, and strong hauling capabilities. A top choice for those who prioritize on-road comfort and reliable performance under load.
• Goodyear Wrangler Duratrac: (Mid-Premium Tier) Offers aggressive off-road performance with good manners on the highway. Ideal for drivers who need strong grip in mud and snow without sacrificing too much road comfort.
• Firestone Transforce AT2: (Mid-Tier) A durable all-terrain tire designed for heavy-duty trucks, offering good traction and a solid ride for work and everyday driving.
• Cooper Discoverer A/T3 LT: (Mid-Tier) A reliable all-terrain option that provides a good balance of off-road capability and on-road comfort, often at a more budget-friendly price point.

When to Inflate to Max Load PSI

For heavy-duty trucks like the 2018 Chevrolet Silverado 2500HD, the recommended cold tire pressure on your door placard is typically a "starting point" for average driving conditions and loads. However, if you are towing or hauling heavy loads that approach your truck's maximum Gross Vehicle Weight Rating (GVWR) or Gross Combined Vehicle Weight Rating (GCWR), it is crucial to inflate your tires to the maximum load PSI indicated on the tire's sidewall.

This ensures the tires can properly support the increased weight, preventing excessive heat buildup, premature wear, and potential tire failure. Always cross-reference the maximum load inflation pressure on your tire's sidewall with the manufacturer's recommendations for heavy hauling. Never exceed the maximum pressure listed on the tire itself.

Lug Nut Torque & Pattern

The 2018 Chevrolet Silverado 2500HD features an 8x180mm bolt pattern. When reinstalling wheels, it's essential to tighten the lug nuts to the correct torque specification in a star pattern to ensure even pressure and prevent warping of the wheel or rotor.

• Lug Nut Torque: 140 lb-ft (190 Nm)
• Lug Nut Pattern: Star pattern (tighten opposing nuts incrementally until the final torque is reached)

It is recommended to re-torque your lug nuts after the first 50-100 miles of driving after a wheel has been removed, as they can sometimes loosen slightly.

Common Tire Issues for This Vehicle

The 2018 Chevrolet Silverado 2500HD is a robust truck, but like any vehicle, certain tire issues can be more common:

• Uneven Tire Wear: Often a symptom of improper tire pressure (under or over-inflation), misaligned suspension, or unbalanced tires. Given the truck's heavy-duty nature, carrying varying loads without adjusting tire pressure can accelerate this.
• Cupping/Scalloping: This wavy wear pattern is frequently caused by worn shock absorbers or other suspension components. Timely suspension maintenance is key to preventing this issue.
• Vibrations at Highway Speeds: This usually points to unbalanced tires or potentially a bent wheel. It's important to address vibrations promptly to prevent further wear on tires and suspension components.
• Tire Punctures: Due to its common use in work environments or off-road conditions, Silverado 2500HD owners might experience a higher incidence of punctures from nails, screws, or sharp rocks.

Regular tire rotations, balancing, alignment checks, and maintaining correct tire pressure (adjusted for load) are essential for extending tire life and ensuring safe operation of your Silverado 2500HD.

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