Tech Articles

07Nov 2019
Signature Series Max-Duty Synthetic Diesel Oil 5W-30

Can Diesel Oil be used in Gas Engines? John Baker|Oct 19, 2019 8:12 AM The simple answer: Yes, you can use diesel oil in a gas engine, provided the diesel oil meets the appropriate specifications and viscosity requirements of your gasoline engine. For example, if your gas engine calls for a motor oil that meets the […]

06Nov 2019
Amsoil Pro

Lubricant specifications are here to help.   Matt Erickson | DIRECTOR, TECHNICAL PRODUCT MANAGEMENT Specs can be confusing if you miss these three points. Let’s step back in time for a minute. It’s the 1920s. You’re cruising around town in your Ford* Model A or maybe your Nash* Advanced Six Coupe. You’re off to the […]

05Sep 2019
synchromesh unit

Get the Most out of Your Manual Transmission Few things connect driver and vehicle like a smooth-shifting manual transmission. Although U.S. automakers have steadily moved away from manuals, many enthusiast cars still come with optional manuals. The heavy-duty market is still dominated by manuals, with many of these transmissions being automated. Most modern automobile manual […]

28Aug 2019
Oil that AMSOIL beat in testing

SIGNATURE SERIES: THE MEASURE OF PERFORMANCE In the NOACK Volatility Test, Signature Series scored far below the API limit for evaporation and proved it remains where it’s needed most – protecting your engine. Nearly 35 years ago AMSOIL became the first oil manufacturer in the United States to use the NOACK Volatility Test as a […]

02Apr 2019

AMSOIL vs. Mobil 1: One Test of Many Andy Arendt|Jan 16, 2019 1:10 PM Most lists of top-10 performance mods include a turbocharger, supercharger, nitrous oxide or updated engine tune. Increasing the engine’s oxygen intake also increases fuel, which boosts power. While all that extra power is great, it puts additional demands on your engine […]

05Feb 2019

Today’s Gas Engines can Produce as much Soot as Yesterday’s Diesels. Matt Erickson | TECHNICAL MANAGER – PCLT PRODUCTS AND MECHANICAL R&D I bet most of you reading this have some level of emotional attachment to traditional vehicles. The muscle-car era of the 1960s and 1970s kindled a lifelong passion for cars for millions of […]

09Jan 2019
engine idling chart

EFFECTS OF EXCESSIVE ENGINE IDLING Excessive idling leads to more than just poor fuel economy. Engine idling is often unavoidable during day-to-day vehicle operation. Whether it’s sitting in traffic or waiting in the school parking lot, excessive idling creates engine wear without advancing the odometer. The detrimental effects of high idle times are numerous: Decreased […]

09Jan 2019

Why Does Motor Oil Turn Black? John Baker|Oct 11, 2018 2:00 PM What causes black motor oil? And when your oil darkens does it mean it’s time to change it? Well, there are a couple of factors that can cause the former. Let’s dig in. Factors causing black motor oil Heat cycles naturally darken motor […]

18Dec 2018
viscosity increase

AMSOIL Synthetic Diesel Oil Greatly Outperforms Minimum Standards Shell* recently announced that a sample of “Mobil Delvac 1300* Super 15W-40 did not meet the passing limits for either API CK-4 performance standards, nor the more stringent requirements for Volvo*, MACK* and Cummins*.” The 360-hour Volvo T-13 test measures both oxidation and Kinematic Viscosity, indicating an […]

20Nov 2018
Signature Series

Signature Series Battles Sludge The health of your engine depends on motor oil circulating quickly and efficiently through the system, but sticking components and obstructed passages inhibit motor oil from lubricating, cooling and protecting your engine. Engine “sludge” occurs when oxidized oil and contaminants build up on engine surfaces. It can restrict the flow of […]

19Feb 2018
checking oil

What Causes an Engine to Burn Oil? While it’s natural to assume any oil consumption indicates an engine problem, it can be a normal part of engine operation, depending on the vehicle. In fact, Chrysler considers oil consumption of up to one quart every 500-2,000 miles to be normal under certain conditions. GM considers one […]

16Nov 2017
stabilize your fuel and protect your engine in storage

Store Equipment With Confidence AMSOIL keeps your stored equipment fresh for our Omaha spring. Fall is the time to think about getting summer equipment put away before winter hits. Preventive maintenance is critical before storing equipment for any extended period of time. Properly storing equipment through the cold winter months protects the engine, prevents rust […]

15Nov 2017
AAA Testing

AAA TESTING AFFIRMS SUPERIORITY OF SYNTHETIC MOTOR OILS AMSOIL introduced the world to synthetic motor oil in 1972, and we’ve been extolling the benefits ever since. While we’ve been joined by many vehicle and equipment manufacturers and competing motor oil companies over the years, the American Automobile Association (AAA) is the most recent company to […]

24Oct 2017
Fight Ethanol Problems

Solving ethanol issues before they arise The fuel some love to hate isn’t the problem – letting gasoline sit too long is the real problem. Len Groom | TECHNICAL PRODUCT MANAGER How did an alternative fuel made mostly from corn grown in the Midwest become a political lightning rod? Whatever the reason, ethanol is always […]

19Oct 2017
Corvairs Need High Zinc Oil

Flat-Tappet and Camshaft Lobe Lubrication This is the Technical Service Bulletin relating to AMSOIL’s main high zinc and ZDDP oils as discussed on a recent video posted on YouTube. OBJECTIVE: Provide facts outlining the lubrication requirements of flat tappet camshaft engines and the importance of higher levels of zinc and phosphorus. ISSUES: Flat-tappet camshafts undergo […]

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