Frequently Asked Questions

Why is an oil change important for a 2025 GMC Sierra 2500HD?

• Protects engine components by reducing friction and wear on pistons, bearings and valvetrain—critical for a heavy-duty 6.6L V8 used in towing or hauling.
• Removes contaminants and deposits that degrade performance and fuel economy over time, keeping your Sierra 2500HD running efficiently.
• Helps maintain lubrication films at high operating temperatures and heavy loads, extending engine life and preserving resale value.
• Prevents sludge buildup that can lead to costly repairs; repairs covered under warranty must be performed at a certified dealership to remain valid.

How long does an 2025 GMC Sierra 2500HD oil change take?

• Most standard oil changes at our service center take about 30–60 minutes, depending on oil type and whether additional inspections or services are requested.
• If your service includes filter replacement, multipoint inspection, or topping fluids, plan for up to an hour to ensure a complete check of your Sierra 2500HD.
• We prioritize fast turnaround without cutting corners—factory-trained technicians follow GM procedures to protect your warranty and vehicle performance.

How much does an oil change cost for a 2025 GMC Sierra 2500HD?

• Costs vary by oil type and service level, but Coggin Buick/GMC of Orange Park often costs less than independent shops while delivering a higher level of service and factory-trained technicians.
• Choosing dealership service delivers immediate savings through accurate service, proper parts and fewer comebacks, and long-term savings by avoiding premature wear and expensive repairs.
• We use GM-approved oils and genuine filters, and any warranty-covered repairs must be performed at a certified dealership to retain coverage.
• Check our current offers and coupons at https://www.cogginbuickgmc.com/specials/service.htm for service specials that reduce your out-of-pocket cost.

How often should you get an oil change for a 2025 GMC Sierra 2500HD?

• Follow the manufacturer’s recommendations in your owner’s manual—intervals depend on driving conditions and oil type.
• For typical highway use with synthetic oil, many modern trucks can go 7,500–10,000 miles between changes; for frequent towing, heavy loads, or severe conditions, service every 5,000 miles or sooner is advised.
• Our technicians will assess your driving profile and recommend the correct interval to maximize engine life and warranty compliance.

What type of oil does a 2025 GMC Sierra 2500HD take?

• Use GM-recommended motor oil that meets factory specifications—typically a GM-approved synthetic oil (Dexos-certified or equivalent) for modern 6.6L engines.
• Our service center uses GM-approved oils and genuine filters to ensure proper protection, emissions compatibility and warranty compliance.
• Always consult the owner’s manual for the exact oil specification; if a repair is covered under warranty, work must be performed at a certified dealership to preserve coverage.

How much oil does a 2025 GMC Sierra 2500HD need?

• Capacity depends on engine and filter used; similar 6.6L V8 engines commonly require roughly 8–9 quarts, but you should confirm the exact capacity in the owner’s manual.
• At Coggin Buick/GMC of Orange Park, technicians measure and fill to the proper level, then verify with the dipstick and system checks to prevent overfill or underfill.
• Accurate oil capacity and proper disposal of used oil are part of our service—using correct volumes helps maintain engine health and warranty validity.