5.7 Hemi Oil Capacity & Recommended Oil Specs (All Model Years)

You crack the hood on your Ram 1500 before an oil change and realize you have no idea how many quarts to grab. Buy too few and you're making a second trip to the parts store. Overfill it and you've got foam in the crankcase and a ticking lifter waiting to ruin your weekend. The 5.7 Hemi has powered Rams, Chargers, Challengers, 300s, Durangos, and Grand Cherokees since 2003. This guide gives you the exact quart count, the right viscosity, and the change interval.

Most 5.7 Hemi engines take 7 quarts (6.6 liters) of oil with a new filter. Chrysler/Stellantis specs 5W-20 for 2019-and-newer engines, and 5W-20 or 5W-30 for earlier model years depending on the application. Oil change interval is up to 8,000 miles with full-synthetic under normal driving, or 3,000 to 5,000 miles if you tow or run dusty roads. Always confirm against your owner's manual for your exact year and trim.

5.7 Hemi Oil Capacity by Model Year

Most 5.7 Hemis hold 7 quarts with a new filter. That number has been constant since 2003. Some shop manuals list 6.9 quarts (6.6 liters), which is the same number rounded down. Grab a 5-quart jug and two single quarts and you're covered.

One thing trips people up on forums. The 7-quart spec assumes you're replacing the filter. Drain only, no filter swap, and you'll fill closer to 6.5 quarts before the dipstick reads full. Always check the stick after the engine has sat level for a few minutes.

2003-2008 (First Generation)

The original 345 cubic-inch Hemi in the Ram 1500, 2500, and Durango holds 7 quarts with a new filter. The early engines didn't have MDS until 2005, but the fill volume stayed the same. These first-gen trucks are still on the road today, and the fill procedure hasn't changed in two decades.

2009-2018 (Second Generation)

The Eagle-block refresh kept the 7-quart fill volume. This covers Ram 1500s, Chargers, Challengers, 300s, Grand Cherokees, and Durangos. Variable Valve Timing came online in 2009 and made clean oil more important. The fill number didn't change. Second-gen Hemis are the workhorses of the used market, and most owners stick with the factory spec.

2019. Present (eTorque and Updated Variants)

The 2019+ Ram 1500 with the 5.7 eTorque mild-hybrid setup still takes 7 quarts. The 48-volt belt-starter generator doesn't share the engine oil supply. Fill volume is identical to the non-eTorque truck. These newer models ship with full synthetic and an 8,000-mile interval from the factory.

Generation	Years	Fill Volume (with filter)	Factory Viscosity
Gen 1	2003-2008	7 qt (6.6 L)	5W-20
Gen 2	2009-2018	7 qt (6.6 L)	5W-20 (5W-30 in HD apps)
Gen 2 / eTorque	2019–present	7 qt (6.6 L)	5W-20 full synthetic

Match your year to the row above and you're set on volume.

Recommended Oil Viscosity for the 5.7 Hemi

Chrysler (now Stellantis) specs 5W-20 for the vast majority of 5.7 Hemi applications. Every Ram 1500 from 2003 forward, plus Chargers, Challengers, 300s, Durangos, and Grand Cherokees, runs 5W-20 from the factory.

Why so thin? Two reasons. The MDS lifters depend on fast oil pressure rise to cycle the deactivation valves. Thinner oil moves through the galleries quicker on a cold start. Fuel economy is the second reason. The EPA test cycle favors lower-viscosity oil and Stellantis tunes the engine for it.

Now the 5W-30 question. I've seen owners on RamForumZ argue this one to death. The short answer: 5W-30 is acceptable in older 5.7 Hemis (2003-2018) in hot climates or higher-mileage trucks burning a little oil. Some heavy-duty Ram 2500/3500 applications even called for it from the factory. Run it in a 2020 1500 and you'll likely throw off the oil life monitor and possibly the MDS engagement.

When does heavier oil make sense? Track use, towing in 110-degree Arizona heat, or a tired engine knocking on 200k miles. A 0W-40 or 5W-40 European-spec synthetic gives you a thicker hot film without giving up cold-start flow. It's a niche move, not a default.

Stick with 5W-20 unless your manual or your climate gives you a clear reason to deviate.

Full Synthetic vs Conventional Oil in the 5.7 Hemi

Every 2019-and-newer 5.7 Hemi ships from the factory with full synthetic. Stellantis spec'd it that way to hit the 8,000-mile change interval and to keep the MDS lifters happy.

For pre-2019 engines, conventional oil meets the minimum spec, but it's not the smart play. The Hemi's Variable Valve Timing solenoids and MDS lifters need a stable oil film at every temperature. Conventional shears out faster, sludges up easier, and breaks down quicker in towing heat. Most folks who've kept a 2nd-gen Hemi past 150k miles have been running synthetic the whole way.

Whatever oil you buy, look for API SP (or SN Plus minimum) on the back of the jug. That cert protects against Low-Speed Pre-Ignition, which Hemis can be prone to under load. ILSAC GF-6 is the matching gasoline-engine standard. Any major brand covers both certifications: Pennzoil Platinum, Mobil 1, Valvoline Restore & Protect, or Castrol Edge.

Pay the extra few bucks for synthetic. Your lifters will thank you.

Oil Change Interval: How Often the 5.7 Hemi Needs Fresh Oil

Factory interval is up to 8,000 miles under normal driving with full synthetic. That's what the Ram and Dodge oil life monitor is calibrated to.

Here's the catch. "Normal driving" in the manual means highway-heavy, moderate temps, no towing, no dirt roads. If you tow a boat to the lake every weekend, run a plow in winter, or do a lot of 10-minute commutes in cold weather, you're in severe duty. Drop to 3,000-5,000 miles between changes.

The oil life monitor is decent but it's not psychic. It tracks engine revolutions, load, and temperature. It'll trim the interval down when you push the truck. Trust it as a ceiling, not a floor. If the truck has been working hard, change the oil sooner than the dash says.

Skipping intervals is where the 5.7 gets expensive. MDS lifter failures are well-documented on every Hemi forum. The common thread is owners stretching oil to 10k+ miles on conventional or cheap synthetic. The lifter rollers gall, the cam lobe wipes, and now you're pulling the heads.

Oil Filter Specs and Drain Plug Torque

The factory-style filter is the Mopar MO-090 on most 2014+ Hemis, with the earlier MO-899 covering 2003-2013 trucks. Cross-references that actually fit: Wix 57356, Fram PH16 (older Hemis), Purolator PL16311, K&N HP-2009. Always double-check your year before clicking buy.

The filter threads onto a vertical-mount housing on the front passenger side of the block on most Ram applications. Easy access from above on a 1500, slightly tighter on a Charger or 300.

Drain plug torque is 20 ft-lb (27 N·m). Use a torque wrench. I've watched a guy strip an oil pan because he gave it the "good and tight" treatment with a 3/8 ratchet. A new crush washer every time, no exceptions.

Remember: the 7-quart fill assumes a fresh filter is installed and primed. Pour 6.5 in, run the engine 30 seconds, then top off to the full mark.

Common 5.7 Hemi Oil Problems and What They Signal

The 5.7 has a few well-known oil-related quirks. Catch them early and they're cheap. Ignore them and they're not.

Oil consumption. Some Hemis sip a quart between changes. Anything above 1 quart per 1,000 miles is a flag. Could be valve stem seals, could be MDS-related ring wear on the cylinders that deactivate. Check the level every other fill-up.

Cold-start lifter tick. A faint tick on startup that clears in 15 seconds is normal Hemi behavior. A tick that lingers, or one that's louder on the passenger bank where the MDS cylinders live, points to a collapsed lifter or low oil level. Pull the dipstick first before you panic.

MDS lifter failure. This is the big one. Symptoms include a persistent tick under load, P0521 oil pressure codes, or rough running at light throttle when MDS engages. Almost always tied to stretched oil intervals or cheap oil. A full lifter set with a cam swap runs $3,500, $6,000 at a shop.

Reading the dipstick right. Park level, shut the engine off, wait five minutes. Pull, wipe, reinsert fully, pull again. The crosshatched zone is your safe window. Above the top hatch and you're overfilled. Below the bottom and you're risking starvation under hard cornering.

Protecting the Cabin While You Protect the Engine

Here's the part nobody talks about. You just spent an afternoon under the truck draining hot oil, wrestling a filter, and torquing the plug. Your hands are black. You slide back into the driver's seat to start the engine and verify oil pressure. That's the moment a factory cloth seat earns its first permanent grease smear.

Most folks who actually wrench on their own trucks also care about the cabin holding up. The engine bay and the seat both wear the same workday. Spilled coffee on a Monday, a labrador in the back on Saturday, a greasy bib draped over the driver's bolster on Sunday afternoon.

Made-to-fit, factory-style covers are the cheapest insurance you can buy for the interior. Seat Cover Solutions builds tailored seat covers for your car or truck across more than 10,000 year-make-model combinations. Every one is airbag-safe and shaped to the exact seat in your truck. They install in under an hour with the seat still in the vehicle.

If you've been curious why these seat covers keep selling out, or why eco-leather holds up better than factory cloth, those are worth a read. Grease wipes off. Coffee beads up. The factory seat underneath stays factory.

Frequently Asked Questions

Q: How much oil do I put in a 5.7 L HEMI?

7 quarts (6.6 liters) with a new filter on every model year from 2003 to present. Without a filter swap, fill to about 6.5 quarts and check the dipstick before adding more. Pour 6 quarts in, start the engine for 30 seconds to circulate, shut it down, wait five minutes, then top off to the full hash mark on the stick.

Q: Should I run 5W-30 in my 5.7 HEMI?

5W-20 is the factory spec for 2019-and-newer engines, and it's the preferred choice for 2003-2018 trucks too. 5W-30 is acceptable in older Hemis in warm climates or high-mileage applications. Some heavy-duty Ram 2500/3500 builds called for it from the factory. On a newer 1500, stick with 5W-20 to keep the MDS system and oil life monitor calibrated correctly.

Q: Can I use conventional oil in a 5.7 Hemi?

On pre-2019 engines, conventional oil meets the minimum API spec, but full synthetic is the smarter call. The MDS lifters and Variable Valve Timing solenoids need a clean, stable oil film at every temperature. Conventional shears out faster under towing heat. 2019+ Hemis ship from the factory with synthetic and the 8,000-mile interval depends on it. Pay the extra $20 a change.

Q: How often should I change the oil on a 5.7 Hemi?

Every 8,000 miles with full synthetic under normal driving. Drop to 3,000-5,000 miles if you tow regularly, plow snow, drive dusty back roads, or do mostly short cold-weather trips. The oil life monitor on the dash trims the interval automatically when it senses harder use. Treat it as a ceiling. Change sooner if the truck has been working.

Q: What oil filter fits a 5.7 Hemi?

The Mopar MO-090 is the factory-style filter for 2014-and-newer Hemis, and the MO-899 covers 2003-2013. Common aftermarket equivalents include Wix 57356, Fram PH16, Purolator PL16311, and K&N HP-2009. Confirm fitment against your model year before ordering. The filter mounts vertically on the front passenger side of the block on Ram applications. Easy access from above.

See factory-style luxury seat covers built to fit your vehicle the next time you climb out of the driver's seat with grease on your jeans. Your factory cloth wasn't built for the work you do. The covers that fit your truck are already cut, stitched, and ready to ship.