2015-2016 Ford 6.7L Powerstroke Engine Oil

Engine oil for the 2015-2016 Ford 6.7L Powerstroke

The 6.7L Powerstroke takes 13.0 quarts with the filter, so four 1-gallon jugs covers a change with some left over for top-off. Ford's chart for 2012-2016 lists three grades: 10W-30 for normal use above 0 F, 5W-40 above -20 F for severe or heavy duty, towing and biodiesel, and 15W-40 above 20 F. If you run biodiesel, that alone counts as severe duty and calls for 5W-40.

Fuel dilution and drain intervals

Active DPF regeneration post-injects fuel, and some of it ends up in the crankcase. Up to 5% between changes is normal and over 7% is severe, and it's worst with idling and short trips. Ford allows 10,000 miles in normal service and 5,000 in severe service. The common recommendation for this engine is 5,000-mile changes, a Ford-spec 5W-40 when you tow or work the truck hard, and oil analysis to catch dilution early.

What we carry

Hot Shot's Secret has the widest range here: Green Diamond full synthetic CK-4 in 10W-30, 5W-40 and 15W-40 plus a 15W-40 semi-synthetic, Blue Diamond 5W-40 full synthetic CK-4 and a 10W-30 PAO oil, and Black Diamond Outlaw full synthetic CK-4 in 10W-30 and 15W-40. Lucas Oil adds a 15W-40 CK-4 and a synthetic 15W-40 CK-4, a synthetic blend 10W-30 CK-4 and Magnum High TBN 15W-40 CI-4. On the additive side you'll find Lucas Heavy Duty and Synthetic Heavy Duty oil stabilizers, Lucas TB Zinc Plus engine break-in additive, Hot Shot's TBN Booster, FR3 Friction Reducer and The Original Stiction Eliminator, and XDP's X-Factor oil additive.

How to choose

Start with the grade Ford lists for your climate and duty, then read each product's listing for its API category and spec. A truck that tows or runs biodiesel belongs on 5W-40. This collection also carries oils that sit outside Ford's chart for this engine: the Hot Shot's ADRENALINE R-Series racing oils, which include 5W-20 and 20W-50 grades, and the Green Diamond 0W-20 light-duty diesel oil. For a daily-driven 2015-2016 6.7L, stay with the three grades Ford lists.

Frequently asked questions

Is 15W-40 okay in a 2015-2016 6.7L Powerstroke?

Yes, above 20 F. Ford's chart lists 15W-40 above 20 F, 10W-30 above 0 F for normal use, and 5W-40 above -20 F for severe duty, towing and biodiesel. Pick by the coldest mornings your truck starts in and how hard you work it.

How much oil does a 2015-2016 6.7L Powerstroke take?

The engine holds 13.0 quarts with the filter, a little over three gallons. Four 1-gallon jugs covers the change and leaves some for topping off between changes.

Not sure what fits? Call the shop at the number in the header, or use the fitment checker on any product page. We install everything we sell.