⚡ The quick answer
If you only remember one thing about what oil a Ram 1500 takes, remember the weight is almost always 5W-20 on the gas engines, and that capacity is what trips people up. A HEMI takes a full 7 quarts, which is more than most pickups, and a half-quart short or long matters more than people think. Below is the full chart, then the why behind each number.
📋 Ram 1500 oil type and capacity by engine
This covers the 4th-generation (2009 to 2018), the DT-body (2019 to present), and the Classic that Ram sold alongside the new body for several years. Find your engine, not just your model year.
| Engine | Oil Weight | Capacity (w/ filter) | Spec |
|---|---|---|---|
| 5.7L HEMI V8 (2009–2026) | 5W-20 | 7.0 qt (6.6 L) | Full synthetic |
| 3.6L Pentastar V6 (2014–2026) | 5W-20 | ~6.0 qt (5.7 L) | Full synthetic |
| 3.0L EcoDiesel V6 (2014–2023) | 5W-40 | ~10.5 qt (10.0 L) | Diesel synthetic, ACEA spec |
| 3.0L Hurricane I6 (2025–2026) | 0W-20 | ~6.5 qt (6.1 L) | Full synthetic |
| 4.7L V8 (2009–2013, older) | 5W-20 | 6.0 qt (5.7 L) | Full synthetic |
Capacities are nominal "from empty" figures including a fresh filter. Real-world fills can land a few tenths of a quart different depending on how long the truck drains. Pour most of it, run the engine briefly, then top off to the dipstick. Never trust the quart count alone.
🔧 The breakdown: what each number means
The 5.7L HEMI: 5W-20, 7 quarts
The 5.7L HEMI is the engine in roughly two-thirds of Ram 1500s on the road, so this is the spec most owners need. It takes 5W-20 and a full 7 quarts. That extra quart over a typical V8 catches a lot of people who buy a 5-quart jug and assume they are done. The HEMI also runs MDS cylinder deactivation, and those lifters are sensitive to oil that is too thick, too old, or too low, so getting the fill right is not just pedantry. If you have heard the HEMI "tick," clean oil at the right level and the right interval is your cheapest insurance.
The 3.6L Pentastar V6: 5W-20, about 6 quarts
The 3.6L Pentastar takes 5W-20 and about 6 quarts. It uses a cartridge-style filter on top of the engine rather than a spin-on can, which is cleaner to change but easy to over-torque and crack. Hand-tight plus a quarter turn is plenty.
The 3.0L EcoDiesel: 5W-40, about 10.5 quarts
The EcoDiesel is the exception to every rule here. It takes 5W-40 rated for diesel duty, not the gas-engine 5W-20, and it swallows roughly 10.5 quarts. Using gas-engine oil or the wrong additive package can foul the emissions hardware. If you tow heavy and notice rough running, our guide on diesel rough idle causes walks through what to check first.
The 3.0L Hurricane: 0W-20
The newest twin-turbo inline-six that replaced the HEMI in much of the 2025+ lineup steps down to 0W-20 for cold-start protection and fuel economy. If you own a brand-new Ram, confirm the cap and manual before you grab a jug of 5W-20 out of habit.
⚠️ Common mistakes to avoid
- Underfilling the HEMI. Buying a single 5-quart jug for a 7-quart engine is the number one error. Two quarts low on a HEMI can starve the MDS lifters and trigger ticking. Buy enough oil for the engine you actually have.
- Using 5W-30 because that is what the parts store handed you. Ram specs 5W-20 on the gas engines. Occasional 5W-30 in extreme heat will not blow the engine up, but it is not the factory spec and can nudge fuel economy and MDS behavior. Match the cap.
- Putting gas oil in an EcoDiesel. The diesel needs 5W-40 with the correct ACEA approval. The wrong oil here can damage emissions components that cost thousands.
- Skipping full synthetic. Modern Ram engines are designed around synthetic. Conventional oil shortens your interval and accelerates wear, especially on turbocharged engines.
- Cranking the cartridge filter cap. On the Pentastar and EcoDiesel, over-tightening the plastic filter housing cracks it and causes leaks. Snug, not gorilla-tight.
🎯 How often to change it, and a quick diagnostic
With full synthetic, a Ram 1500 gas engine typically goes 7,500 to 10,000 miles between changes, or whenever the oil-life monitor hits zero. For severe duty, towing, heavy idling, dusty work sites, or a lot of short trips, tighten that to every 5,000 miles. The EcoDiesel runs on a roughly 10,000-mile schedule with the right oil. Use this quick check:
- Oil light flickers at idle or on stops? Check level first, then oil pressure. See code P0521 (oil pressure sensor) if a scan tool throws it.
- Ticking or rattle on cold start? Confirm correct weight and level, and read our engine ticking noise guide. Wrong or low oil is a frequent culprit on the HEMI.
- Burning oil or low between changes? Track consumption, then diagnose. Our how to check your oil level walkthrough shows the right way to read the dipstick warm.
- Quoted a fortune for an oil-related repair? Run it through the Quote Checker before you say yes.
❓ Frequently asked questions
📝 TL;DR
- 5.7L HEMI: 5W-20, 7 quarts, full synthetic.
- 3.6L Pentastar V6: 5W-20, about 6 quarts.
- 3.0L EcoDiesel: 5W-40 diesel-rated, about 10.5 quarts.
- 3.0L Hurricane (2025+): 0W-20.
- Interval: 7,500 to 10,000 miles on synthetic, 5,000 for severe duty.
- Always confirm against your oil cap and owner's manual, and fill to the dipstick rather than trusting the quart count.