Fontana Chrysler Dodge Jeep RAM
Putting the wrong oil in a RAM 1500 is easier than it sounds. The truck has carried nine different engines since 2011, and the required viscosity, the Chrysler material standard, and the fill volume all change depending on which one is under your hood — and in some cases on the model year. A 3.6L Pentastar takes six quarts; a Gen 2 EcoDiesel takes ten and a half. Two versions of the same 3.0L Hurricane take different oil from each other.
At Fontana Chrysler Dodge Jeep RAM, serving Fontana, San Bernardino, Rancho Cucamonga, Riverside, and Claremont, we built this guide so you can find the exact specification for your truck before you buy a single quart.
Identify your engine first, then read across. If you are not certain which engine you have, the viscosity grade is printed on the engine oil fill cap under the hood — that is the fastest confirmation available, and it takes about fifteen seconds. Your owner’s manual lists both the required Chrysler material standard and the capacity with a filter change. If the paperwork is missing, the build sheet, the window sticker, and an official VIN decoder will all identify the powertrain.
What changed recently: the RAM 1500 lineup shifted to six-cylinder engines for the 2025 model year, which is why there is no 5.7L HEMI row for 2025. RAM announced the return of the 5.7L HEMI V8 beginning with the 2026 RAM 1500, as a direct result of customer input, and it continues into 2027. The 3.0L EcoDiesel was discontinued after the 2023 model year, with production ending in January 2023.
| Engine | Model Years | Oil Type | Capacity (with filter) | Notes |
|---|---|---|---|---|
| 3.7L V6 | 2011-2012 | SAE 5W-20 (MS-6395) | 5.0 quarts | Base V6 of the fourth generation |
| 4.7L V8 | 2011-2012 | SAE 5W-20 (MS-6395) | 6.0 quarts | Often overlooked — not the same fill as the 5.7L |
| 3.6L Pentastar V6 | 2012-2018 | SAE 5W-20 full synthetic (MS-6395) | 6.0 quarts | Full synthetic required from 2013 |
| 3.6L Pentastar V6 eTorque | 2019-2027 | SAE 0W-20 full synthetic (MS-6395) | 6.0 quarts | Moved to 0W-20 with eTorque in 2019 |
| 5.7L HEMI V8 | 2011-2012 | SAE 5W-20 (MS-6395) | 7.0 quarts | Synthetic preferred, not required |
| 5.7L HEMI V8 | 2013-2021 | SAE 5W-20 full synthetic (MS-6395) | 7.0 quarts | Full synthetic required from 2013 |
| 5.7L HEMI V8 | 2022-2024, 2026-2027 | SAE 0W-20 full synthetic (MS-6395) | 7.0 quarts | Moved to 0W-20 in 2022. Not offered for 2025. eTorque on most trims; 2027 Rumble Bee models forgo eTorque |
| 3.0L EcoDiesel V6 (Gen 2) | 2014-2019 | SAE 5W-40 full synthetic diesel (MS-10902 / API CJ-4) | 10.5 quarts | TSB 18-078-16 updated this from the original 5W-30 |
| 3.0L EcoDiesel V6 (Gen 3) | 2020-2023 | SAE 5W-40 full synthetic diesel (MS-12991 / API SN) | 8.5 quarts | Different spec from Gen 2 — not interchangeable. Discontinued after 2023 |
| 3.0L Hurricane I6 — Standard Output | 2025-2027 | SAE 0W-20 full synthetic (MS-6395, API SP) | 7.5 quarts | Factory fill: Pennzoil Ultra Platinum 0W-20 |
| 3.0L Hurricane I6 — High Output | 2025-2027 | SAE 0W-40 full synthetic (MS-A0921, API SP) | 7.5 quarts | Different spec from the SO — do not substitute 0W-20 |
| 6.4L HEMI V8 (392) | 2027 | SAE 0W-40 full synthetic (MS-A0921) | Confirm — first 1500 application | Rumble Bee 392 and 392 Track Pack. MS-A0921 is the 6.4L spec across Ram applications; the 1500 fill volume is not yet published |
| 6.2L Supercharged HEMI V8 | 2027 | SAE 0W-40 full synthetic | Confirm — new 2027 application | Rumble Bee SRT and TRX SRT. The 2021-2024 TRX specified MS-12633; confirm standard and volume for the 777-horsepower engine |
Note on 2027: the Pentastar, HEMI, and both Hurricane engines carry into the 2027 RAM 1500. The 2027 specifications shown are carried from the 2026 model year — confirm against your owner’s manual before service.
Note on the EcoDiesel generations: the 3.0L EcoDiesel was redesigned for 2020, dropping capacity from 10.5 to 8.5 quarts and changing the standard from MS-10902 / API CJ-4 to MS-12991 / API SN. The two are not interchangeable. Verify your generation before buying oil.
Note on the 2027 performance V8s: the 6.4L HEMI and the supercharged 6.2L HEMI are new to the 1500 platform for 2027. Both take 0W-40, but RAM has not published 1500-specific fill volumes. Call our Parts Department and we will pull the exact specification against your VIN.
The information in this article is general guidance and does not constitute a specific diagnostic or repair recommendation for any individual vehicle. Repair and maintenance decisions should be made in consultation with a certified technician based on the specific condition of your vehicle.
Cited Source: 2027 RAM 1500 — 2027 engine availability | Stellantis Media — 2026 HEMI return and 2023 EcoDiesel final production | 2025 RAM 1500 Specifications — Hurricane and Pentastar capacities and factory oil fill | RAM Owner’s Manual — Fluid Capacities — 6.4L HEMI volume | RAM 1500 2011 Specifications — 3.7L, 4.7L and 5.7L volumes | BLAU Parts, Diesel Hub, Hot Shot’s Secret, Truck Guider — cross-references
RAM 1500 engines use two completely different filter designs, and knowing which one you have changes the tools you need before you start. The HEMI V8s use a spin-on canister mounted low on the block, and you replace the entire sealed unit. The 3.6L Pentastar and the EcoDiesel use a cartridge: the housing stays permanently mounted on top of the engine, under a black high-temperature plastic cap, and you replace only the paper element inside plus its O-ring.
| Attribute | Spin-on canister (HEMI V8) | Top-mounted cartridge (3.6L Pentastar, EcoDiesel) |
|---|---|---|
| Location | Low on the engine block | Top of the engine, in the valley between the intake runners |
| What you replace | The entire sealed filter unit | The paper element plus a new O-ring |
| Tool needed | Oil filter cup wrench | 24 mm (15/16″) socket |
| Torque | Hand tight plus about a quarter turn | 18 lb-ft (25 N·m) on the housing cap |
The cartridge design is where most driveway oil changes go wrong. The cap is plastic, and it has a real torque specification — 18 lb-ft, which is 25 N·m. A persistent myth online says the figure is 18 inch-pounds; it is not, and inch-pound torque on a plastic cap will leave you a leak. Overtighten it instead and you can crack the housing. The O-ring has to be replaced every time and lightly oiled with clean motor oil before the cap goes back on.
Filter part numbers vary by engine and model year, and the correct one depends on your VIN. Rather than publish a number that may not fit your application, call our Parts Department and we will confirm the right filter before you buy it.
The information in this article is general guidance and does not constitute a specific diagnostic or repair recommendation for any individual vehicle. Repair and maintenance decisions should be made in consultation with a certified technician based on the specific condition of your vehicle.
Cited Source: AutoZone, Truck Guider — filter type, location, and the 24 mm socket and 18 lb-ft cap torque specification
On a 5.7L HEMI, the oil is not only a lubricant — it is the hydraulic fluid that operates the Multi-Displacement System.
MDS deactivates four of the eight cylinders to improve fuel economy, turning the V8 into a four-cylinder under light load. It does this hydraulically. When the MDS solenoids are off, roughly 3 psi of oil keeps the lifter bores lubricated. When they switch on, 16 psi or more is sent to a set of special collapsible lifters, driving pins inward so those four cylinders stop pumping. The powertrain control module uses oil pressure, load, and rpm to calculate viscosity and flow rate as part of that decision.
Oil viscosity therefore has a direct effect on whether the system works. RAM’s own technical guidance is to always use the viscosity printed on the oil filler cap, because using a heavier oil may prevent MDS from operating normally. Run the wrong grade and the system can fail to engage, the truck can shudder on the transition, and fault code P1521 can set.
Cited Source: Underhood Service — MDS technical teardown and the instruction to use the viscosity printed on the oil filler cap | MDS solenoid control valve technical documentation — lifter actuation pressures and fault code P1521 | RAM — 2027 RAM 1500 Rumble Bee — current MDS description
Viscosity ratings like 0W-20 and 5W-40 only describe how thick the oil is at two test temperatures. The Chrysler material standards — MS-6395, MS-A0921, MS-10902, MS-12991, MS-12633 — go further, certifying chemical composition and the additive packages that resist oxidation and shear breakdown, protect timing chains, and safeguard emissions equipment. Two bottles can both read 0W-40 and only one will meet MS-A0921.
This is the most common mistake we see: a High Output Hurricane owner buys 0W-40 because the viscosity is right, but the bottle does not carry MS-A0921. Check the back label for the material standard, not just the number on the front.
Cited Source: 2025 RAM 1500 Specifications — factory oil fill by material standard | BLAU Parts, Oils Advisor — MS standard cross-reference by engine
Modern RAM 1500s do not run on a fixed mileage schedule. They use an Oil Change Indicator System that displays “Oil Change Due” in the instrument cluster. The system is duty cycle based, which means the interval moves depending on how the truck is actually driven. Two identical trucks on the same street can ask for service thousands of miles apart.
RAM publishes different ceilings for the 1500 than for the heavy-duty trucks. These are the 1500 figures, whichever limit you reach first counts, and once the alert appears you have about 500 miles to get in.
| Engine or Condition | Maximum Mileage | Maximum Time | Maximum Engine Run Time |
|---|---|---|---|
| Gasoline engines (RAM 1500) | 10,000 miles | 12 months | 350 hours |
| 3.0L Hurricane High Output (RHO) | 6,000 miles | 6 months | — |
| 3.0L EcoDiesel (2014-2023) | Per the Oil Change Indicator System | 12 months | — |
| Dusty or off-road operation | 4,000 miles | — | — |
| Severe operating conditions | Indicator can illuminate as early as 3,500 miles | — | — |
That 350-hour figure sits in the same sentence of the manual as the mileage and the calendar, and gets quoted far less often than either. A truck that spends its day idling on a job site can reach 350 hours well before 10,000 miles. This is the criterion that catches work trucks.
RAM names the operating conditions that pull the interval in:
Plenty of RAM 1500 owners around Fontana, San Bernardino, Riverside, Rancho Cucamonga, and Claremont check more than one of those boxes. Cajon Pass alone runs from roughly 2,500 feet in the valley to over 4,200 feet at the summit, through a narrow corridor of steep slopes and sharp curves that is demanding on anything towing a trailer. If that is your truck’s week, treat it as severe duty.
One note for 2025 and newer trucks: the 3.0L Hurricane engines use an electronic oil level display in the cluster rather than a dipstick. Check the level there.
Cited Source: RAM Owner’s Manual — Scheduled Servicing — duty-cycle operation of the Oil Change Indicator System | RAM Owner’s Manual — Maintenance Schedules — the 1500-specific 10,000-mile / 12-month / 350-hour ceiling, the 4,000-mile dusty and off-road interval, the 3,500-mile severe-condition illumination point, the 500-mile service window and the severe-conditions list | Cajon Pass — elevation and grade | Riverfront CDJR — RHO maintenance interval
The indicator is accurate, but it is not the only thing worth watching.
The most direct signal there is.
Clean oil is amber; dark brown or black means it is time.
Knocking can point to insufficient lubrication.
Oil you can smell inside the cab usually means a leak.
Can indicate the engine is burning oil.
Low oil between changes means a leak or consumption.
Not always oil-related, but low oil pressure triggers it.
Cited Source: RAM Owner’s Manual — Maintenance Schedules — oil level checking procedure and the Oil Change Required message | O’Reilly Auto Parts — symptom guidance for RAM 1500 oil service
Underfilling is the obvious risk. Overfilling is the one people do not expect.
Put too much oil in the crankcase and the spinning crankshaft whips it into foam. Aerated oil carries trapped air, which drops oil pressure and starves the bearings and valve train. On a HEMI, that is the same oil pressure MDS depends on. Excess oil can also be pushed through the crankcase ventilation system into the intake, which produces exhaust smoke, fouls plugs, and can damage the catalytic converter.
If you are filling it yourself, add most of the specified volume, run the engine briefly to charge the filter, let the truck sit level for a few minutes, then verify the level before topping off.
Cited Source: RAM Owner’s Manual — Scheduled Servicing — oil level checking procedure and ADD/MIN mark guidance | Third-party engine service references — aeration and catalytic converter consequences of overfilling
The 2020 RAM 1500 with the 5.7L HEMI takes 7 quarts of 5W-20 full synthetic with the filter, meeting Chrysler MS-6395. Any API-certified synthetic meeting that standard works; Pennzoil Ultra Platinum is the factory fill RAM specifies on current trucks, and Mopar-branded oil meets the requirement.
It depends on the engine. The 3.6L Pentastar V6 takes 6 quarts of 0W-20 full synthetic. The 5.7L HEMI V8 takes 7 quarts of 5W-20 full synthetic. The 3.0L EcoDiesel Gen 2 takes 10.5 quarts of 5W-40 full synthetic diesel oil meeting MS-10902 and API CJ-4.
The 3.6L V6 takes 6 quarts, the 5.7L HEMI takes 7 quarts of 0W-20 — 2022 is the year the HEMI switched from 5W-20 — and the EcoDiesel Gen 3 takes 8.5 quarts of 5W-40 meeting MS-12991. Confirm your engine before adding anything.
7 quarts, or 6.6 liters, with the filter. That figure holds across 2011-2024 and 2026-2027. The viscosity is what moves: 5W-20 through 2021, 0W-20 from 2022 on. The HEMI was not offered in the 2025 model year. Confirm the grade on your oil fill cap.
It depends on which Hurricane you have, and this is the one worth getting right. The Standard Output takes 7.5 quarts of 0W-20 meeting MS-6395 and API SP. The High Output, the engine in the RHO, takes 7.5 quarts of 0W-40 meeting MS-A0921 and API SP. Same displacement, same capacity, different oil. Never substitute 0W-20 in a High Output engine.
Use only the viscosity your owner’s manual and oil fill cap specify. On a HEMI a heavier grade can interfere with MDS operation, a documented failure mode rather than a theoretical one, and an unapproved viscosity can affect warranty coverage.
Approximately 10.5 quarts of 5W-40 full synthetic diesel oil meeting MS-10902 and API CJ-4. FCA retroactively revised the specification in 2016 through TSB 18-078-16, moving all EcoDiesels built before June 30, 2016 from 5W-30 to 5W-40. If your truck is from that window, confirm you are running 5W-40.
No. Passenger-car 5W-30 does not carry the heavy-duty diesel additive package that suspends soot and resists soot-induced thickening. Every EcoDiesel requires a 5W-40 diesel-rated oil carrying the correct material standard for its generation.
For the gasoline engines, yes, and no flush is needed: drain, replace the filter, refill with an oil meeting your engine’s material standard. The caveat is that “full synthetic” alone is not the requirement — the oil still has to carry the right MS number. That matters most on the EcoDiesel and the High Output Hurricane, where a generic full synthetic will not meet the specification.
Quality aftermarket filters built to OEM specification can be used. Genuine Mopar filters are engineered to RAM’s bypass and anti-drainback requirements, which matters most on engines with tight oil passages and hydraulic valve-train systems. Whichever you choose, confirm the part fits your engine and model year.
Park level, shut the engine off, and wait five to ten minutes. Pull the dipstick, wipe it, reinsert fully, and pull it again — the level should sit between the MIN and MAX marks. On 2025 and newer trucks with the 3.0L Hurricane, use the electronic oil level display in the instrument cluster instead.
No. Capacities run from 5 quarts on the 3.7L V6 to 10.5 quarts on a Gen 2 EcoDiesel, and the material standard changes across MS-6395, MS-A0921, MS-10902, MS-12991, and MS-12633. Check the table above against your engine and year.
Every figure in these answers is drawn from the specification table above and carries the same sourcing.
Our certified technicians use genuine Mopar oil and filters, serving Fontana, San Bernardino, Rancho Cucamonga, Riverside, and Claremont.
We follow current manufacturer specifications, including the Hurricane standards.
Matched to the material standard your engine requires.
Included with every oil change.
Book online around the clock or call our service desk.
Service specials and Mopar coupons apply to oil change work.
For original owners, 2026 RAM trucks carry a 10-year/100,000-mile limited powertrain warranty‖ covering the engine, transmission, transfer case, driveshafts, differentials, and axles. Coverage reverts to the previous five-year term for subsequent owners; fleet purchases and battery-electric vehicles are excluded. Dealer service records are the simplest way to document maintenance against it.
‖ This information is provided for general educational purposes only and does not constitute legal advice. Warranty coverage depends on the specific terms of your vehicle’s warranty agreement. Consult your owner’s manual or a qualified legal professional for guidance on your individual situation.
Cited Source: Equipment World — 2026 RAM limited powertrain warranty coverage, original-owner restriction and exclusions | Cars.com, Consumer Guide — corroborating coverage detail
If you want to go deeper on RAM maintenance, our Service and Parts Tips hub collects every guide we publish, including the RAM 2500 Oil Type guide for heavy-duty owners, the 6.7L Cummins Diesel Maintenance Guide, the RAM 2500 Maintenance Guide, and our general Service FAQ. You can also read more about what we do in the Service Department.
The specification is not a suggestion. The gap between MS-6395 and MS-A0921, or between a Gen 2 and a Gen 3 EcoDiesel, is the difference between a routine oil change and a turbocharger full of deposits. If you would rather not decode it, bring the truck to us — tell us the year and engine, or just hand us the keys.
The information in this article is general guidance and does not constitute a specific diagnostic or repair recommendation for any individual vehicle. Repair and maintenance decisions should be made in consultation with a certified technician based on the specific condition of your vehicle.
‖ This information is provided for general educational purposes only and does not constitute legal advice. Warranty coverage depends on the specific terms of your vehicle’s warranty agreement. Consult your owner’s manual or a qualified legal professional for guidance on your individual situation.
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