Engine Performance Articles

4 stoke engine theory

Toyota Engines

Engine Oil and Oil Filtration

Extended Oil Change Intervals Taking Their Toll On Today's Engines

Engine Oil - Valvoline

Engine Oil Myths - Valvoline

20% of Bulk Oils Fail Their API Rating - Lubes & Greases

OBDII

OBD2 Diagnostic Tips - AA1car.com

Diagnostic Trouble Code Help - AA1car.com

Tools & Equipment

Choosing a Scan Tool That Is Right For You - AA1car.com

Ignition Systems & Spark Plugs

Spark Plugs - AA1car.com

Removing Stuck Spark Plugs - You Tube

Ignition Coil Diagnostics - Auto Care Pro

Diagnosis

Diagnosis: Car Will Not Start or Run - AA1car.com

How To Diagnose Blown Fuses (Shorts to Ground) - Auto Care Pro

Interference Engines (Timing Belts) - AA1car.com

General Information

Larry Carley's aa1Car.com

How Stuff Works

Convert degrees Celsius to Fahrenheit - Online Conversion Tool

Vehicle Identification Number - Wiki

Online VIN Decoder

Steve's List of Online Engine Performance Links

Ignition & Spark Plugs

NGK Spark Plugs

Lubrication & Filtration

Engine Performance Theory/Physics

Vacuum

Engine Intake Manifold

OBD II

Trouble Codes - AA1.car.com

Latest Trouble Code Definitions - SAE International

Engine Performance Videos

Spark Plugs

Spark Plug Selection

Spark Plug Installation

Multi-ground Electrode Spark Plugs

Spark Plug Heat Ranges

Corona Stain on Spark Plug Porcelain

Spark Plug Gap

Spark Plug Torque - Overtight

Spark Plug Torque - Undertight

NGK Spark Plug Terminal Styles