Why Does Motor Oil Turn Black?

Motor oil turns black during use for a couple reasons: 1) Heat cycles During your drive to work in the morning, your engine reaches normal operating temperature (typically 195ºF-220ºF), heating the motor oil. Then the oil cools while your car sits in the parking lot.

The Pros and Cons of Semi-Synthetic Oils and Synthetic Blends

Motor oil

Scott D. Galbreath asks via our Facebook page about the pros and cons of synthetic blend motor oils. Thanks for the question, Scott. Making sense of motor oil can be confusing and frustrating. Choosing among full synthetics, synthetic blends, semi-conventional, conventional, high-mileage full synthetics and synthetic blends is just the beginning.

Why You Should Consider Buying a Diesel

The U.S. automotive market is changing and people are keeping their cars and trucks longer and longer. I am no stranger to this mentality – I just sold my 1998 pickup I had owned since new. Doing so opened the opportunity for my next long-term investment, a Ford F350 with the 6.7L diesel.

The DIY Oil Change: Avoid These 5 Common Mistakes

AMSOIL Motor Oil Change

I’m probably from the last generation of people who largely changed their own oil. As the pace of life has increased and engine technology has grown more complicated, most people now pay a professional to take care of their auto-maintenance needs.

11 Easy Tips to Make Your Car Last Longer: Advice from AMSOIL Gearheads

Jeep Wrangler - Car Maintenance Tips

I’ll be honest – I can’t drop a new set of gears in a rear differential or install a performance cam. I have lofty dreams of owning a red Jeep Wrangler, but real wrench turning might lie beyond my particular skill set. Luckily, I work among a legion of gearheads. Our generous car gurus offered

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Common Fixes for a Transmission that Jerks or Hesitates

automatic transmission - do transmission fluid additives work?

Here are a few common reasons why your transmission may shift erratically, jerk or hesitate. • Low fluid level • Depleted fluid frictional properties • Poor cold-temperature fluidity

Top 5 Tips for Protecting Your Diesel

002-diesel-power-challenge-2016-drag-racing

If you love your diesel pickup as much as I love mine, then you know what it takes to make it look good, run good and sound good. It’s no task for the weary or lazy, however.

How to Test Engine Compression

Compression Gauge

Engine compression = engine power. A simple equation even we non-engineers can understand. Compression refers to the pressure your engine generates inside the cylinders while it’s running. How much pressure the engine produces and how well it converts that pressure into usable work influence your engine’s efficiency and power. How it all works and how

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Prepare Your Vehicle for Winter

Cold-weather oil performance Snowy Car Windshield

With winter around the corner, now is a good time to get your vehicle prepared for the worst. Being based in northern Wisconsin, we at AMSOIL talk a lot about how synthetic lubricants make life a little easier, as the cold air starts to pierce our engines and lungs. Wherever you may be, nasty road

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5 Ways to Boost Horsepower for Under $500

Boost horsepower in your car or truck

More power. It’s the rallying cry of gearheads across time and place, whether you secretly wish you were Brian O’Connor when passing cars in your Mitsubishi Eclipse or Cole Trickle when tossing your 1984 Camaro around town.