The Daily Rev

Wyatt Snell with his blue 1977 Ford F250

Behind The Wheel: Cummins Swapped 1977 Ford Built to Live On

Wyatt's 1977 Ford F250 was his dad's truck first. Now it runs a 12-valve Cummins and hauls a '78 Alaskan camper across Montana. See the...
Doc's Cabin Air Filter

Cabin Air Filter 101: Beating Late-Summer Dust, Smoke & Pollen in the Cab

Does your truck cab smell musty or hazy? Learn about cabin air filter symptoms, how often to change it, and a 5-minute DIY fix. ...
Doc's Diesel Oil Change Kits

Keep it Runnin' Ep.2: Oil Changes Done Right

How often should you really change diesel oil? Doc's busts 3 myths and breaks down oil change kits for Cummins, Powerstroke & Duramax trucks. ...
Doc's Auto Parts

Engine Air Filter Guide: Symptoms, Change Intervals & Which One Fits Your Truck

Dirty air filter symptoms, when to change it, and which Doc's Diesel filter fits your truck. Shop engine air filters and oil kits now. ...
Doc's Auto Parts

Gas vs. Diesel Trucks: What's the Difference?

Gas or diesel truck? Compare power, fuel economy, maintenance, and towing capability to find out which engine fits how you actually drive and work. ...
Doc's Diesel Brake Parts Cleaner Spray

Behind The Wheel: Built in Big Sky

Meet Levi Costa of Landworx Montana in Doc's Behind the Wheel series, a land-clearing pro who lives by hard work, long hauls, and staying ahead...
Doc's Windshield Washer Concentrate Fluid

One Bottle, Six Freeze Levels: Doc's New Windshield Washer Concentrate

One 16 oz bottle of Doc's Super Concentrate makes up to 4 gallons of washer fluid, protecting to -40°F. See the dilution chart and mixing...
Mechanic Replacing Fuel Filter with Doc's Diesel Fuel Filter

Keep It Runnin' Ep. 1: Fuel Filters = Your First Line of Defense

Fuel filters block dirt, rust & water before they hit your injectors. Learn the warning signs, change intervals, and build a summer maintenance routine. ...
Doc's Diehard Loyalty Banner with Skull and lightning bolts on a red background

Diesel Diehard Rewards & Subscriptions

Earn Diesel Dollars on every order and save 5% with Doc's Cruise Control auto-refill subscriptions. Join Diesel Diehard, Doc's free loyalty program. ...
Doc's Diesel Brakes and Rotors

Doc's Diesel Brake Kit Comparison: Which Is Right For You?

Doc's Diesel launches NEW drilled & slotted rotors, directional rotors, high carbon rotors, ceramic pads, and semi- metallic pads. Learn which combo is built for...
Doc's Diesel Brake Parts Cleaner Spray

How Greg Kimpel Keeps His Diesel Trucks Hauling Mile After Mile

Greg Kimpel hauls 7,000 miles a month towing up to 12k lbs. See how he keeps his Powerstroke running strong with Doc's Diesel filters and...
Doc's Diesel Runs Like New Additives Kit

Keep Your Diesel Running Like New: Inside Doc's Diesel's New 3-Part Additive Kit

Protect your DEF system, fuel system & DPF with Doc's Diesel Runs Like New Additive Kit. 3-part formula for any diesel truck. Free shipping $99+...
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