How many quarts of oil does a 6.7 Cummins take?

6.7 Cummins oil capacity ranges from 12 qt with filter across the listed applications. A common reference point is 12 qt with filter for 2007-2018 Ram 2500 / 3500 with 6.7L Cummins.

Does 6.7 Cummins oil capacity include the filter?

Yes. The capacity values on this page are with a new oil filter, which is the number normally used during an oil change.

Why do 6.7 Cummins oil capacity references differ?

The difference usually comes from model year, vehicle application, oil pan, emissions package, or whether the source is listing a with-filter service fill.

verifiedEngine family guide

6.7 Cummins Oil Capacity by Year

Most Ram Heavy Duty trucks with the 6.7L Cummins use 12.0 qt with filter. Oil viscosity and service category vary by model year, emissions package, and cold-weather operation. Use the table and finder below to match the exact year and application before refilling.

Most common

12 qt

2007-2018

Capacity range

12 qt

with filter

Oil spec

API CJ-4 / CK-4 diesel oil; verify Ram manual

verify in manual

Capacity Finder

Check your year and truck series

YearTruck series

Oil capacity with filter

12qt11.4 L

Use the with-filter amount for a normal oil and filter change. Confirm exact oil category in the owner manual for the model year.

Oil Capacity by Year and Application

All numbers below are with a new oil filter.

YearsApplicationWith filterLitersOil spec

2007-2018Ram 2500 / 3500 with 6.7L Cummins12 qt11.4 LAPI CJ-4 / CK-4 diesel oil; verify Ram manual

2019-2026Ram 2500 / 3500 with 6.7L Cummins12 qt11.4 LMopar MS-10902 / API CK-4 diesel oil

Why the Answer Changes

The search term "6.7 cummins oil capacity" sounds like one fixed number, but the same engine family can appear across different years, vehicle series, emissions packages, and oil-pan configurations. Those differences can change the published refill amount, viscosity, or oil approval.

warningFill note

Add about 0.5 qt less than the listed capacity first, start the engine briefly, wait a few minutes, then verify with the dipstick and top off gradually. Do not rely on a generic engine answer if your vehicle is a different series, chassis-cab, medium-duty, or special-package configuration.

Common Questions

How much oil does a 6.7 Cummins take with filter?

6.7 Cummins oil capacity is 12 qt with filter across the applications listed above. The most common row to start from is 12 qt for 2007-2018 Ram 2500 / 3500 with 6.7L Cummins.

What oil viscosity should I use?

15W-40 normal service; 5W-40 synthetic for cold or severe service / 10W-30 normal service; 5W-40 synthetic for severe or cold service. Use oil meeting the approval shown for your exact row, and verify the viscosity against your owner manual and oil cap.

What happens if I overfill it?

Overfilling can aerate oil and cause messy crankcase ventilation issues. If the dipstick reads high after a correct warm-up and wait period, drain a small amount and recheck.

How often should I change the oil?

Follow the oil life monitor and owner manual. Heavy towing, idling, dusty work, biodiesel use, and severe service usually call for shorter intervals.

High-Intent Year Pages

2011 6.7 Cummins Oil Capacityarrow_forward 2016 6.7 Cummins Oil Capacityarrow_forward 2019 6.7 Cummins Oil Capacityarrow_forward 2022 6.7 Cummins Oil Capacityarrow_forward 2024 6.7 Cummins Oil Capacityarrow_forward 2025 6.7 Cummins Oil Capacityarrow_forward

Related Ram Pages

Ram Oil Capacity Check by VIN

Source note: Stellantis/Ram owner manual capacity tables for 2500/3500 trucks and Cummins diesel oil specification guidance. Always verify the exact truck in the owner manual before service.