Browse real-world articles on AMSOIL synthetic oil, HPDE maintenance, diesel oil, fuel additives, driveline fluids, and performance car reliability.
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Completed aluminum radiator outlet duct and blue coolant hoses in the engine bay of my 2012 Shelby GT500.

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S197 GT500 Radiator Ducting: From Lower Grill to Hood Vent

Follow my first radiator ducting project, from cardboard templates and riveted aluminum panels to hood vent fitment and the changes I would make next time.

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2012 Shelby GT500 Intercooler Upgrade: VMP Brick and 1-Inch Water Manifold Install

Inside my GT500 intercooler upgrade: stock-versus-VMP comparison photos, matching transfer tubes, rear hose-clamp access, and installation details.

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AMSOIL 0W-20 LS for Volvo XC90| European-Spec Oil Tested

A real world test of AMSOIL 0W-20 LS in a Volvo XC90, including product selection, required specifications and dealer approval during a major repair.

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Shelby GT500 Return to the Track: Second Chance at Willow Springs

Follow my 2012 Shelby GT500's return to Willow Springs after fixing a throttle body issue. Watch on-board videos with data tracking my lap times and progress.

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Three AMSOIL Signature Series Max-Duty 10W-30 diesel oil quart bottles

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AMSOIL 10W-30 Diesel Oil: Signature Series Max-Duty Guide

A dealer buying guide to AMSOIL 10W-30 diesel oil: Max-Duty versus Heavy-Duty, engine fitment, 15W-40 comparisons, service limits, and current pricing.

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Track Day Disaster: Shelby GT500 Trouble at Willow Springs

I headed to Willow Springs for an HPDE track day in my 2012 Shelby GT500. Things quickly took a turn when my engine started acting up.

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amsoil product guides

AMSOIL Product Reviews and Buying Guides

Explore detailed AMSOIL product guides that explain where each oil, additive, filter, or driveline fluid fits, who it is designed for, and what to consider before buying.

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AMSOIL P.i. Review: My Fuel-System Cleaning Routine

My AMSOIL P.i. review after about 15 years of use, including my fuel-system cleaning routine, dosage, interval, and P.i. vs. Upper Cylinder Lubricant.

Gasoline fuel-system cleaner · 12 fl oz · Treats up to 30 gallons

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