OEM Spec Generation (2015–2026)
2026 RAM 3500 Oil Capacity
Capacity (w/ Filter)
12 Quarts
Primary Viscosity
15W-40 / 5W-40 Synthetic
Drain Plug Torque
37 ft-lbs
Drain Plug Socket
19mm
Amazon Verified Fit
Get OEM Oil & Filter for your 2026 RAM 3500
Recommended: 15W-40 / 5W-40 Synthetic Full Synthetic + Fleetguard LF16035 Filter
Factory OEM Oil & Filter Specifications
| Engine Oil Capacity (with Filter) | 12 US Quarts (11.4 Liters) |
|---|---|
| Engine Oil Capacity (without Filter) | 11.2 US Quarts (10.6 L) |
| Recommended Viscosity Grade | 15W-40 / 5W-40 Synthetic |
| Oil Pan Drain Plug Torque | 37 ft-lbs (50 Nm) |
| Drain Plug Socket Hex Size | 19mm |
| OEM Filter Specification | Fleetguard LF16035 |
| Recommended Service Interval | 7,500 – 10,000 Miles (Normal) / 5,000 Miles (Severe Driving) |
Required Tools & Hardware Checklist for Oil Service
2026 RAM 3500 Oil Life Reset Procedure
After completing your oil and filter change, reset the engine maintenance minder through the instrument cluster:
- Switch the ignition to the ON / RUN position without starting the engine (press the engine Start/Stop button twice with your foot off the brake pedal).
- Using the steering wheel controls or driver information buttons, scroll to the Vehicle Maintenance / Oil Life screen.
- Press and hold the OK / Reset button for 5 to 10 seconds until the oil life indicator percentage begins flashing.
- Select Confirm / Reset or hold for an additional 3 seconds until the display updates to 100% Oil Life.
- Turn the ignition off completely, then start the engine to verify that the Maintenance Required light remains extinguished.
Normal vs. Severe Driving Service Intervals
| Driving Classification | Recommended Mileage Interval | Time Threshold | Operating Conditions |
|---|---|---|---|
| Normal Highway Commute | 7,500 – 10,000 Miles | 12 Months | Steady cruising, moderate temperatures, minimal idle time. |
| Severe Driving Service | 5,000 Miles | 6 Months | Trips under 5 miles, frequent stop-and-go city traffic, extreme cold, towing. |
Recommended Engine Oil & OEM Maintenance Equipment
Engine Oil
Full Synthetic 15W-40 / 5W-40 Synthetic (5-Qt Jug)
API SP & ILSAC GF-6 certified motor oil formulated for the 2026 RAM 3500. Excellent cold-start flow and deposit protection.
Check Oil on Amazon →
High-Mileage Oil
High Mileage 15W-40 / 5W-40 Synthetic
Engineered with seal conditioners and extra zinc anti-wear additives for engines past 75,000 miles to stop minor weeping.
View High Mileage on Amazon →
OEM Filter
Oil Filter (PN: Fleetguard LF16035)
Synthetic media oil filter providing 99% multi-pass filtration efficiency. Includes integrated anti-drainback silicone valve.
View Filter on Amazon →
Hardware
OEM Drain Plug Crush Washers
Multi-pack of soft aluminum and copper crush gaskets. Prevents oil pan thread stripping and persistent underbody drips.
View Crush Washers on Amazon →
Precision Tool
3/8-Inch Click Torque Wrench
Pre-calibrated 10–80 ft-lbs torque wrench. Accurately set to 37 ft-lbs to protect soft aluminum oil pans.
View Torque Wrench on Amazon →
Shop Tool
Oil Filter Wrench Cup / Pliers
Fluted cup and adjustable swivel filter pliers designed to fit tight engine bays without crushing the filter canister.
View Filter Tool on Amazon →SelectMyBlog participates in affiliate programs and may earn commissions from qualifying purchases.
Alternative Service Method
Never Crawl Under Your Car Again: Vacuum Oil Extractor
Pneumatic and manual vacuum oil extractors pull used motor oil directly out through the dipstick tube in under 10 minutes. Eliminates the need for floor jacks, jack stands, removing skid plates, and the risk of stripping aluminum oil pan drain bolts.
View Top-Side Fluid Extractors on Amazon →Frequently Asked Questions
How many quarts of oil does a 2026 RAM 3500 take?
The 2026 RAM 3500 requires exactly 12 US quarts (11.4 liters) of engine oil when replacing both the oil and filter.
What viscosity oil does the RAM 3500 use?
The manufacturer specifies 15W-40 / 5W-40 Synthetic for all ambient temperature operating ranges.
What size socket is needed for the oil drain plug?
The oil pan drain bolt requires a 19mm socket, torqued to 37 ft-lbs (50 Nm).
How often should you change the oil on a 2026 RAM 3500?
Under normal driving conditions, replace the oil every 7,500 to 10,000 miles (or 12 months). Under severe conditions (short trips, heavy stop-and-go driving), change oil every 5,000 miles (6 months).
Do you need to replace the crush washer on each oil change?
Yes. The aluminum crush washer deforms to create a liquid-tight seal against the oil pan. Reusing an old crush washer can cause oil leaks and stripped oil pan threads.