Heavy Duty
Oil Change
OEM-specified oils, correct viscosity grades, quality filtration, and optional oil analysis — CTR provides professional diesel oil service for all engine platforms.
Diesel Oil Service Done Right
A diesel oil change is more than draining and filling — it's an opportunity to evaluate engine health. CTR uses the correct oil classification (CK-4 or FA-4), the correct viscosity grade, and quality filtration for every engine platform. No shortcuts, no substitutions.
We maintain specifications and procedures for every major diesel engine: Cummins, Detroit, PACCAR, International, Volvo. Optional oil analysis provides the most cost-effective diagnostic tool for monitoring engine health and optimizing drain intervals.
Located on Armentrout Drive directly off I-85 at Exit 58. Fleet programs available with volume pricing and scheduled coordination.
OEM-Specified Products
Correct classification, viscosity, and filtration for every engine platform.
3-Year, 36K Warranty
Industry-leading warranty on all oil service. Parts and labor.
Oil Analysis Available
Lab testing to monitor engine health and optimize drain intervals.
Fleet Programs
Volume pricing, scheduled coordination, fleet management documentation.
Diesel Oil Service Options
From standard oil change to premium service with analysis. Click any service for details.
Drain and replace engine oil with OEM-specified grade and classification. Replace oil filter(s). Check and top off all fluids. Visual inspection of belts, hoses, leaks, tires. Reset oil life monitor.
Warning Signs Your Oil Needs Attention
Oil Pressure Warning Light
Low oil pressure gauge reading or dashboard warning. Stop immediately — continued operation causes catastrophic engine damage.
Milky or Frothy Oil
Indicates coolant contamination — head gasket, EGR cooler, or oil cooler failure. Requires immediate diagnosis.
Dark, Gritty, or Metallic Oil
Excessive soot loading, depleted additives, or internal wear producing metal particles.
Diesel Fuel Smell in Oil
Fuel dilution from injector dribble, incomplete combustion, or excessive DPF regen cycles.
Excessive Oil Consumption
Adding oil between changes — worn rings, valve seals, turbo seals, or external leaks.
Blue or Gray Exhaust Smoke
Oil burning in combustion chambers — rings, valve guides, or turbo seal failure.
Oil Service Cost Guide
| Service | Cost Range |
|---|---|
| Standard Oil Change | $200–$400 |
| Premium Oil Service (Synthetic) | $350–$600+ |
| Oil Analysis (Add-On) | $50–$100 |
| Fuel Filter Service | $150–$350 |
| Oil Leak Diagnosis | $150+ |
| Oil Leak Repair | Varies by source |
All oil services backed by 3-year, 36,000-mile warranty.
Engine Oil Capacities
Understanding Diesel Engine Oil
Modern diesel engine oils are precisely engineered to protect components operating under extreme pressure, temperature, and soot loading. The correct specification — API CK-4 or FA-4 — combined with the right viscosity grade is critical for engine longevity.
API CK-4 — Universal
Backward-compatible with all older engines. Higher HTHS viscosity (3.5 cP min) for maximum wear protection. The default choice for mixed fleets.
API FA-4 — Fuel Economy
Lower HTHS viscosity (2.9–3.2 cP) for fuel savings. ONLY for 2017+ engines designed for it. NOT backward-compatible.
Viscosity Grade Selection
15W-40: traditional all-season (above 10°F). 10W-30: better cold-start, lower fuel consumption. 5W-40: extreme cold. Match to operating conditions.
Oil Analysis Value
Measures wear metals, TBN, viscosity, contaminants. Detects problems early. Optimizes drain intervals. $25–$50 per sample — highest ROI diagnostic tool.
Built for Heavy Duty
CTR's facility on Armentrout Drive has the equipment, oil inventory, and filtration stock to service every major diesel engine platform. Convenient I-85 access at Exit 58 with ample commercial vehicle parking.
Fleet Oil Change Programs
Volume pricing, scheduled coordination, fleet management documentation, oil analysis trending across your fleet, and proactive scheduling reminders. Keep your entire fleet on proper intervals.
(704) 786-0132
Diesel Oil Service Near You
CTR Heavy Duty — Concord
Directly off Interstate 85 at Exit 58. Easy truck access, ample parking.
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