The 2018 Chevy Silverado 1500 LT is a powerful full-size pickup truck designed for towing, hauling, and daily driving performance.
To keep this truck running smoothly, using the correct engine oil and following proper maintenance intervals is extremely important.
This guide covers oil type, oil capacity, oil change interval, oil filter information, maintenance cost, and engine-specific recommendations for all LT trims.
2018 Chevy Silverado 1500 LT Engine Oil Type
The recommended oil type for 2018 Chevy Silverado 1500 LT depends on engine configuration.
All engines require Dexos1 approved full synthetic oil for proper protection and fuel efficiency.
Recommended Oil Grades:
• 4.3L V6 → SAE 5W-30
• 5.3L V8 → SAE 0W-20
• 6.2L V8 → SAE 0W-20
2018 Silverado 1500 LT Oil Capacity
Oil capacity varies depending on engine type and whether the filter is replaced during service.
Oil Change Interval for 2018 Silverado 1500 LT
Regular oil changes help prevent AFM-related issues, reduce engine wear, and extend engine life.
2018 Silverado 1500 LT Oil Change Cost
- DIY Oil Change: $45 – $80
- Independent Workshop: $80 – $130
- Dealer Service: $120 – $200
- Full Synthetic Service: $100 – $160
Best Engine Oil Brands for Silverado LT
Recommended Oils
- Mobil 1 Advanced Full Synthetic
- Castrol EDGE 0W-20
- Pennzoil Platinum Full Synthetic
- Valvoline Advanced Full Synthetic
- ACDelco Dexos1 Oil
Why Synthetic Oil Matters
- Protects AFM system components
- Improves fuel economy
- Reduces engine sludge buildup
- Better cold-start protection
- Extends engine lifespan
How to Change Oil in Silverado 1500 LT
Common Oil-Related Problems
- AFM lifter noise issues
- Oil consumption in high-mileage engines
- Low oil pressure at idle
- Sludge buildup from delayed oil changes
Frequently Asked Questions (FAQ)
What oil does 2018 Silverado 1500 LT use?
It uses Dexos1 approved full synthetic oil such as 0W-20 or 5W-30 depending on engine type.
How much oil does it take?
Between 6 and 8 quarts depending on engine size.
How often should oil be changed?
Every 5,000–7,500 miles depending on driving conditions.
Is synthetic oil required?
Yes, Dexos1 full synthetic oil is strongly recommended for engine protection.
Final Thoughts
The 2018 Chevy Silverado 1500 LT performs best when maintained with the correct Dexos1 synthetic oil and timely oil changes.
Proper maintenance helps prevent AFM issues and ensures long engine life.