Best Oil Filter Brands Compared
Independent oil-filter brand guide Find the Best Oil Filter Brand for Your Engine, Budget and Service Interval There is no single oil-filter brand that wins every vehicle, engine and driving …
OEM vs Aftermarket Oil Filters – Worth the Difference?
Oil-filter buying and fitment guide Choose the Right Oil Filter Without Paying for a Logo or Risking Your Engine An OEM oil filter is the vehicle manufacturer’s specified replacement part. …
What Is a Bypass Valve in an Oil Filter?
Oil-filter pressure protection The Oil-Filter Bypass Valve Protects Oil Flow When Filtration Becomes Restricted An oil-filter bypass valve is a pressure-sensitive safety valve. It temporarily allows engine oil to travel …
Paper vs Synthetic Oil Filter Media Explained
Oil-filter buying and service guide Choose the Right Oil-Filter Media for Your Engine and Oil-Change Interval Paper, cellulose, synthetic-blend and fully synthetic oil-filter media can all protect an engine when …
How to Tell If Your Oil Filter Is Clogged
Low-oil-flow diagnosis and safety guide Recognize Oil-Flow Trouble Before It Causes Serious Engine Damage A severely restricted oil filter can contribute to low oil flow, unfiltered bypass operation or lubrication …
Extended Life Oil Filters – Are They Worth the Cost?
Long-life filter buying guide Decide When a Premium Long-Life Oil Filter Is Worth Paying For An extended-life oil filter can be worth the extra cost when your vehicle allows a …
How to Properly Install an Oil Filter
Leak-free spin-on and cartridge installation Install an Oil Filter Correctly—and Verify the Seal Before Driving Proper oil-filter installation is more than screwing on a new part. You must confirm the …
Oil Filter Size Guide by Vehicle Type
Vehicle-specific filter fitment guide Match Your Vehicle to the Correct Oil Filter Size Without Guessing Compact cars, SUVs, pickups and diesel trucks often use different filter designs, but vehicle type …
Diesel vs Gasoline Engine Oil – Key Differences
International engine-oil selection guide Choose Engine Oil by Fuel Type, Emissions System and Manufacturer Approval Diesel and gasoline—or petrol—engine oils can share the same SAE viscosity, base-oil type and even …
Best Oil for Towing and Heavy Hauling
Gasoline, diesel and heavy-duty towing oil guide Choose Engine Oil That Protects Under Towing Heat and Load The best oil for towing is not automatically the thickest oil or the …
CJ-4 vs CK-4 Diesel Oil – What’s the Difference?
Heavy-duty diesel oil specification guide Choose Between CJ-4 and CK-4 Without Risking Your Diesel Engine or DPF API CJ-4 and CK-4 are performance categories for high-speed four-stroke diesel engine oil. …
Can You Change Oil Without Changing the Filter?
Oil-only change explained You Can Drain the Oil Without Replacing the Filter—but Usually Should Not An engine will usually continue running if you replace the oil but leave the existing …
How Much Oil Does a Diesel Truck Take?
Diesel truck oil capacity guide Find the Correct Diesel Engine Oil Amount Before You Start the Oil Change Most full-size diesel pickup trucks take roughly 10–15 US quarts, or about …
How Often Should Diesel Trucks Get Oil Changes?
Diesel pickup maintenance intervals Diesel-Truck Oil Changes Depend on Mileage, Time, Engine Hours and Workload Many modern diesel pickups can travel roughly 7,500–15,000 miles (12,000–24,000 km) between oil changes under …
Best Oil for Duramax, Powerstroke & Cummins Engines
Heavy-duty diesel pickup oil guide Match the Oil to Your Exact Duramax, Power Stroke or Cummins Engine The best diesel oil is not one universal brand or one viscosity for …
Diesel Exhaust Fluid vs Engine Oil – Don’t Confuse Them
Two fluids, two completely different systems Know Where DEF and Engine Oil Go—and What to Do After a Wrong Fill Diesel Exhaust Fluid (DEF) is a water-based emissions fluid that …
Diesel Oil Analysis – Is It Worth Doing?
Used diesel oil testing explained Use a Small Oil Sample to Find Fuel, Coolant, Soot and Wear Before They Become Expensive Diesel oil analysis is often worth doing when the …
How to Check Oil on a Diesel Truck With Dual Filters
Diesel oil-level and filter-service guide Check the Sump Level Correctly Before and After Both Filters Fill A diesel engine with two oil filters still normally has one crankcase, one oil-fill …
Best Oil Change Interval for Fleet & Commercial Vehicles
Fleet oil-interval planning The Best Fleet Oil Interval Is Set by Duty Cycle—not One Mileage Number A passenger car, delivery van, police vehicle, diesel pickup and Class 8 tractor should …
Oil Capacity for Heavy-Duty Work Trucks
Heavy-duty truck oil capacity guide Find the Correct Work-Truck Oil Capacity Before Buying or Pouring the Oil Heavy-duty work trucks can require anything from roughly 10 US quarts in a …
Signs of Diesel Engine Oil Dilution From Regen Cycles
DPF regeneration and diesel fuel-in-oil guide Recognize Rising Oil Level Before Diesel Dilution Damages the Engine During some active diesel particulate filter regeneration strategies, the engine uses late fuel injections …
Best Oil for Diesel Trucks in Cold Climates
Winter diesel viscosity and cold-start guide Choose Diesel Oil That Pumps Quickly Without Losing Required Protection The best oil for a diesel truck in cold weather is the lowest winter-grade …
Valvoline vs Jiffy Lube – Which Is Better?
Quick-lube comparison Valvoline Is Better for a Straightforward Stay-in-the-Car Oil Change; Jiffy Lube Can Be Better for Broader Vehicle Service Valvoline Instant Oil Change is the stronger default when your …
Walmart Oil Change Price & What’s Included
Current Walmart Auto Care pricing Compare Walmart Oil-Change Packages Before Extra Oil and Upgrades Change the Bill Walmart’s official US oil-change menu currently starts at $28.88 for Pit Crew conventional …
Best Quick-Lube Chains Compared (2026)
Independent 2026 quick-oil-change comparison Choose the Best Quick-Lube Chain for Speed, Value and Service Scope There is no single quick-lube chain that wins for every driver. Valvoline Instant Oil Change …
Common Oil-Related Problems in High-Mileage Diesel Trucks
High-mileage diesel troubleshooting guide Recognize Diesel Truck Oil Problems Before They Become Engine Failures A high-mileage diesel may use some oil between services, but rapid oil loss, a rising dipstick …
Take 5 vs Valvoline Oil Change Comparison
Drive-through oil change comparison Choose the Better Quick Oil Change for Your Car, Budget and Maintenance Needs Take 5 and Valvoline Instant Oil Change both offer no-appointment, stay-in-your-car oil changes. …
Firestone vs Midas Oil Change – Which Should You Choose?
Oil-change chain comparison Firestone or Midas? Compare the Real Oil-Change Value Before You Book Firestone Complete Auto Care and Midas can both perform a routine oil and filter change, inspect …
Dealership Oil Change – Is It Ever Worth the Extra Cost?
Dealership service decision guide When Paying More for a Dealer Oil Change Actually Makes Sense A dealership oil change is not automatically better, and most drivers do not need to …
Mobile Oil Change Services – Are They Reliable?
At-home vehicle maintenance guide How to Book a Mobile Oil Change Without Risking Your Engine A mobile oil change can be just as reliable as a shop visit when the …
Pep Boys vs AutoZone – Do They Offer Oil Changes?
Service shop versus DIY parts store Pep Boys and AutoZone Oil Changes: Know Where to Book and Where to Buy Pep Boys performs oil changes at participating service locations. You …
Costco Oil Change – Is Membership Worth It for Service?
Costco vehicle-service reality check Does Costco Change Oil, and Should You Join for Automotive Savings? For most drivers in the United States, the answer is no: Costco Tire Centers do …
Best Oil Change Subscription Services Reviewed
Oil-change membership review Which Oil Change Subscription Actually Saves You Money? Oil-change subscriptions promise predictable monthly payments, automatic reminders and discounted service. The problem is that many plans cost more …
Independent Mechanic vs Chain Oil Change Shops
Oil-change shop decision guide Local Mechanic or Chain Shop? Choose the Better Oil-Change Service An independent mechanic may offer more personal attention, long-term vehicle knowledge and direct access to the …
Oil Capacity for Turbocharged Engines
Turbo engine oil-capacity guide Find the Correct Oil Capacity for a Turbocharged Engine There is no universal oil capacity for a turbocharged engine. Two engines with the same displacement can …
How to Choose a Trustworthy Oil Change Shop
Oil-service shop selection guide Use a 15-Minute Trust Test Before Anyone Touches Your Engine A trustworthy oil-change shop does more than advertise a low price. It identifies your exact engine, …
Oil Capacity for 4-Cylinder Engines Explained
Four-cylinder oil capacity guide Why a Four-Cylinder Engine May Need 3.5, 4.5 or More Than 6 Quarts Most passenger-car four-cylinder engines hold roughly 3.5 to 5.5 US quarts, or about …
Oil Capacity for V6 Engines Explained
V6 oil quantity and refill guide Find the Correct V6 Oil Amount Without Guessing by Engine Size A V6 engine does not have one standard oil capacity. Many passenger-vehicle V6 …
Oil Capacity for V8 Engines Explained
V8 oil capacity explained clearly How Much Oil Does a V8 Engine Take? A V8 engine does not have one standard oil capacity. A practical planning range for many road-going …
Oil Capacity for Rotary Engines – What’s Different
Rotary engine oil guide Rotary Engine Oil Capacity Is Different—Here Is How to Fill It Correctly A rotary engine does not merely store and circulate oil. In many Mazda rotary …
Oil Capacity for Inline-6 Engines
Straight-six oil capacity guide How Much Oil Does an Inline-6 Engine Actually Need? There is no universal inline-six oil capacity. A modern 3.0-litre gasoline inline-six may use around 7.5 US …
Oil Capacity for Small Displacement Engines (1.0L–1.5L)
1.0L–1.5L oil capacity guide Small Engine Size Does Not Mean a One-Litre Oil Capacity Many 1.0L–1.5L passenger-car engines use approximately 3.1 to 4.6 litres of oil during a routine oil-and-filter …
Oil Capacity for High-Performance Sports Car Engines
Performance-engine oil capacity guide Measure Sports Car Engine Oil the Way the Manufacturer Intended High-performance sports car engines often carry more oil than ordinary passenger-car engines, but there is no …
How Engine Displacement Affects Oil Capacity
Engine size versus actual oil requirement Does a Bigger Engine Always Need More Oil? Engine displacement influences oil capacity, but it does not determine it. Larger engines often need more …
Oil Capacity for Flat/Boxer Engines Explained
Flat and boxer engine oil guide Boxer Engine Oil Capacity Explained Without the Guesswork A flat engine’s horizontal cylinders do not determine how much oil it holds. Capacity depends on …
Oil Capacity for Dual-Overhead Cam (DOHC) Engines
DOHC engine oil-capacity guide How Much Oil Does a Dual-Overhead Cam Engine Need? There is no universal oil capacity for a DOHC engine. Dual-overhead cam describes the position of the …
Best Oil for Cold Weather Starts
Winter engine-oil selection guide Choose Oil That Reaches the Engine Quickly on a Freezing Start The best oil for cold-weather starts is usually the lowest winter grade specifically approved for …
Oil Capacity for Older Pushrod V8 Engines
Classic OHV V8 oil-capacity guide Why an Older Pushrod V8 May Need 4, 5, 6 or More Than 8 Quarts Many stock older American pushrod V8s use approximately 4 to …
Summer Heat and Engine Oil: Does Climate Affect Oil Choice?
Choosing motor oil for hot weather How Summer Heat Changes Engine-Oil Decisions Climate affects engine-oil performance, but hot weather does not automatically mean your car needs thicker oil. Start with …
Winterizing Your Car’s Oil – What You Need to Know
Cold-weather engine-oil guide Winterize Your Car’s Oil Without Using the Wrong Viscosity Winterizing engine oil does not mean automatically switching every car to the thinnest oil on the shelf. The …