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Here's What The Mopar Extended Warranty Actually Covers On A Used Car
Mopar's warranties don't just cover Chryslers, Dodges, Rams, and Jeeps. You can get them on all Stellantis vehicles. Here's what they cover.
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Why Racing Cars Use Straight Cut Gears
Have you ever wondered why racing cars use straight cut transmission gears instead of helical gears? Here's what you need to know.
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How Cylinder Deactivation Saves You Gas (And Sometimes Doesn't)
Automakers call it by different names, but many have a system to deactivate some of an engine's cylinders and save you gas. Yet this can bring its own problems.
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Is Your Trailer Too High Or Low? Here's How Level It Should Be (And How To Check)
When you're towing, does the trailer need to be level? If so, how can you check? And how can you go about making sure it's actually in perfect balance?
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Here Are Some Unexpected DIY Ways To Get Oil Stains Out Of Your Driveway
You've probably heard of kitty litter and baking soda as prime methods for getting oil stains off your driveway. But there are lots of, um, odder ways to do it.
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If Your Diesel Engine Feels Sluggish Under Load, This Might Be Why
There are lots of reasons why your diesel engine might be underperforming, but a lot of them go back to the same underlying issue. Here's what to do.
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Are Your Tires Too Big? Here's What That Can Do To Your Transmission
Upgrading to bigger tires will wreak havoc on your transmission, making your car work harder, throwing off your gear ratios, and eventually leading to disaster.
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What Made Mopar's 383 Engine Different From The 340 And 440?
The numbers may seem similar, but there were key differences between Mopar's 340, 383, and 440 engines. They included both architecture and horsepower.
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Why Some Classic Pontiacs Came With Rare 8-Lug Wheels
The eight-lug wheels on those classic Pontiacs weren't there for show, although they were showy. There was a practical reason for their presence.
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Why Cars Still Don't Have Airless Tires, Yet
After decades of development, we still don't have flat-proof no-maintenance airless tires. What are their pros and cons, and what's the holdup?
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Why Do Jeeps Have A Seven-Slot Grille? There's More Than One Theory
There are many ideas about why Jeeps today have two slots fewer in their grilles than during WWII. Our writer plowed through all the paperwork for the answer.
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Wyomingites Probably Put More Miles On Their Cars Than You Do
Residents of Wyoming rack up far more miles a year than other drivers. There are reasons for that ... and mileage affects what drivers pay for insurance.
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Is Costco's Gas Discount Worth The Membership? Here's The Math That Matters
Costco gas is generally cheaper than competitors', but does it justify the membership? Here's the answer ... and the one place non-members can gas up at Costco.
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How To Fix The Rattle On A Loose Tow Hitch
There are lots of ways to fix the rattle on a loose tow hitch. Some of them cost a little bit of money, but there are free ways, too, for the handy DIYer.
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Are Porsche's PSCB Brakes Just A Compromise Or A Clever Middle Ground?
Porsche's Surface Coated Brakes are the middle child with a tungsten-carbide twist.
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Why Do F1 Tires Look So Shiny?
If you're a Formula 1 racing fan, you may have noticed that in recent years the tires have a surprising glossiness. It's all about the way they're made.
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What GT Stands For (And Why It Doesn't Always Mean The Same Thing)
The initials "GT" in a car's name have a specific definition. But there's also the part where automakers say, "It means what I choose it to mean."
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Why Some High-Performance Transmissions Are Called Dog Boxes
These transmissions are called dog boxes for a reason that's kind of silly. But they've been used in some of the best, and most expensive, cars ever built.
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How Google Street View Captures The World
Google Street View's coverage boasts 12 million miles across 110 countries, and the company is taking new pictures of those miles all the time.
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These Brands Still Make Tires In America
Many tire brands outsource their entire manufacturing process to other countries due to costs. However, there are a few that still make their tires in the U.S.
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What Does X-Mode Actually Do On Subaru Cars?
Subaru's X-Mode provides better performance under challenging road conditions, but how does it do it? And what are the limitations on using it?
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Do Diesel DPF Cleaners Work? Here's What Users Are Saying
Diesel engines can be complicated, but opinions are divided on whether DPF cleaners work - or are even necessary in the first place.
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Why There Might Be White Sludge Under Your Oil Cap
Take a look under your oil cap. Do you see an unexpected and gross off-white substance? If so, your car is trying to tell you something. Here's what it is.
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Can A Car Battery Be Charged Without Disconnecting It First?
Charging your car's battery needn't be complicated, but it's worth checking the details first.
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What Is Brake Fade And How Does It Happen?
Whether you've been pushing hard, or going down steep inclines, most drivers know the feeling of stepping on the brakes but not slowing as much as expected.
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Why Is It So Hard To Reverse An F1 Car?
Yes, F1 cars have reverse gears, but you'll rarely see drivers use them.
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Subaru's AVH Feature Explained: What It Does And How To Disable It
AVH is a feature on some Subarus, but what, exactly, does it do? Why do some drivers dislike it? And if you dislike it, how would you go about disabling it?
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