Technical Service Bulletins:

TSB: Service Intervals for GM Vehicles with “HFV6” Engines

Updated: TSB: Flat Tappet and Camshaft Lobe Lubrication

TSB: Automatic Transmission Supplements

TSB: Condemning Limits for Water Contamination in Engine Oils

TSB: DIN 51517 Part 3 (CLP) Industrial Gear Oil Specification Update

TSB: Chlorine Content of Some Engine Oil Treatments

TSB: AMSOIL EAO13 Service Interval Change

TSB: Toyota Transmission Fill System and Aftermarket Transmission Shops

TSB: AMSOIL Synthetic Universal Automatic Transmission Fluid Applications Guide

TSB: Ski-Doo, Can-AM Warranty Coverage & AMSOIL Products

TSB: Fuel Dilution Issues in 2007-10 Light-Duty Diesel Trucks

TSB: Fuel Dilution in 2007 and Newer Cat C-13 and C-15 Engines

TSB: Using AMSOIL in Mazda RENESIS Rotary Engines

TSB: Erratic Shifting Problems in Chrysler Automatic Transmissions After Changing ATF

TSB: EaO47 Oil Filters No Longer Recommended for Suzuki/GM 3.6L V6 Applications

TSB: EAO Oil Filters – Toyota Applications

TSB: Wet-Clutch Operation and Lubrication Requirements (795k PDF)

TSB: Using AMSOIL in Engines with Possible Sludge Issues

TSB: GM Cooling System Sealing Tablets and AMSOIL ANT Compatibility (202k PDF)

TSB: Thermal Runaway in Gear Lubes (182k PDF)

Differential Oil Change After Initial Break-in (123k PDF)

Use of AMSOIL Lubricants in High Mileage Vehicles(49K PDF)

Tackifier Additives Used In Gear Lube (42k PDF)

Reasons For Motor Oil Consumption (256k PDF)

Break-In For New and Rebuilt Engines (25k PDF)

Flat Tappet and Camshaft Lobe Lubrication (188k PDF)

Fuel Dilution Causes and Effects (33k PDF)