10W-30 Oil + Kits

10W-30 Oil + Kits

Wide-Range Protection, Full Synthetic.

10W-30 delivers strong cold-start flow and steady high-heat protection for the diesel platforms that call for it. Doc's Diesel 10W-30 Full Synthetic is available on its own, in a platform-matched Oil Change Kit, or as a complete Oil + Filter Maintenance Kit that handles the whole service in one order.

What's In This Collection

Doc's 10W-30 Full Synthetic Heavy-Duty Diesel Oil on its own, formulated for excellent wear protection and strong oxidation and viscosity control under severe operating conditions — built to meet GHG 17 emissions standards for both new emissions-compliant rigs and older workhorses. Oil Change Kits pair the oil with the correct oil filter for your exact platform. Oil + Filter Maintenance Kits go further, bundling oil, oil filter, and the other filters your service calls for so the whole job gets done in one order. Bulk 55-gallon drums and a 192-gallon skid are available for fleets and shops running through it fast.

Platform Coverage

Doc's 10W-30 Kits are matched to your exact engine and generation — Ford 6.0L, 6.4L, 6.7L, and 7.3L Powerstroke, and RAM 6.7L and 5.9L Cummins. Every filter included is OE-matched for form, fit, and function, so there's no mixing parts from different sources or guessing on compatibility.

Change Interval

Above all recommendations, change according to your vehicle's manufacturer warranty.

Standard Service (normal duty): every 10,000–15,000 miles maximum, or as recommended by OEM
Severe Service (heavy loads, towing, dusty or extreme conditions): every 7,500–10,000 miles maximum
Off-Road / Agricultural / Equipment: follow manufacturer guidelines, typically 250–500 hours

Built to OEM Specs. Backed by the Doc's Fitment Guarantee. No guesswork. No BS.

Free shipping on qualifying orders. Grab your weight, grab your kit, get back on the road.