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Turn More Heads with AMSOIL Car Care
AMSOIL car-care products are engineered with advanced technology to deliver powerful cleaning action that helps vehicles shine brighter.

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Your Ultimate Oil Change
Right product. Right package. Right to your door.

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Which AMSOIL Motor Oil Is Right for You?
No matter what you drive or how you drive, AMSOIL provides specially formulated motor oil designed to protect your vehicle.

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• Diesel
• Cars & Trucks
9 Motor Oil and Car Maintenance Myths, Busted
Motor oil myths abound. Here are nine of the most persistent along with our myth-busting facts.

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• Diesel
• AMSOIL HQ
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Synthetic vs. Conventional Oil: The Differences That Matter
Find out everything you need to know about synthetic vs. conventional motor oil.

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• Cars & Trucks
5W-20 vs. 5W-30 vs. 10W-30: What’s the Difference?
The primary differences are their viscosities when cold and once your engine has reached operating temperature.

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• Diesel
• Ask AMSOIL
• Cars & Trucks
Transmission Flush vs Fluid Change: Which is Better?
Is a flush or pan drop better when changing transmission fluid? Learn the pros and cons of each method.

• How To
• Diesel
• Cars & Trucks
Power Steering Fluid: How to Check It and When to Change It
There are a couple ways to change power steering fluid, depending on your technical know-how.

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• Cars & Trucks
How to Clean Fuel Injectors: Gas and Diesel
Using proven AMSOIL fuel additives can save you money on expensive maintenance.