Tech Articles

Cylinder Liner Cavitation - correct with proper coolant

A SIMPLE WAY TO FIGHT CYLINDER-LINER CAVITATION In extreme cases, cylinder-liner cavitation in diesels can allow oil and coolant to mix. Then it’s just a matter of time until engine failure. Here’s what you can do to help ensure that doesn’t happen. Most diesel engines are designed with replaceable cast-iron cylinder liners that are pressed […]

premier high zinc oils

The Debate Over Reduced ZDDP and Wear Protection   Do modern motor oils formulated with reduced zinc and phosphorus anti-wear additives provide adequate engine protection? It’s a question some industry insiders, auto enthusiasts and motorists have been asking for years. And as engine builders and classic-car owners continue to experience engine failures they attribute to […]

Preventing Diesel Fuel Gelling Note: These off season products your will save more money buying now. But these exclusive prices are by telephone only. Check the online price for a case of the cold flow or all in one then call us at 800-579-0580. Mark Nyholm|Oct 29, 2019 10:12 AM We diesel burners get a […]

top dead center valve timing

Why Does My Engine Knock? 3 Possible Explanations. John Baker|Aug 06, 2019 10:56 AM There are a few different reasons your engine might make a knocking, ticking or pinging sound. Let’s break each down and talk about what might be happening. Is it an engine knocking sound, tick or ping? One driver’s knock is another driver’s tick. Or ping. […]

cleaning filter surface

Changing the Oil in your Motorcycle John Baker|Mar 09, 2020 9:20 AM Guest Blog Post by Monica Pretzl Changing oil in your motorcycle is relatively quick and easy. It’s also important; regular oil changes prolong engine life and keep your bike running smoothly all season. We broke down the process into step-by-step directions for both […]

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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

oil drain pan

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 […]

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 […]

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 […]