May 2006 The First in Synthetics Heightened Awareness

May 2006 “The First in Synthetics”®

Heightened Awareness for Differential Oil Changes

What Most Vehicle Owners Don’t Know Differential gear lube needs to be changed, why? 1. Vehicle manufacturers require it. 2. 34 to 93% Increased horsepower in newer vehicles stresses oil further. 3. Sump capacities have been lowered 4. Higher towing capabilities which can cause increased gear loading. 5. Hotter running differentials caused by less air-flow from improved aerodynamics. 6. Break-in wear particles need to be flushed out.

Differential Location (rear between wheels) Engine Differential Front Rear Transmission

Differential Internal Parts Cut-Away Limited Slip Clutches Side Gears Spider Gears Carrier Bearings Axle Bearings Ring Gear Pinion Bearings

Top 5 Truck Manufacturers Differential Oil Drain Intervals

Tests Prove When the Differential Wear Happens & Why an Oil Change is Needed Iron Wear Particles 6, 869 Miles on Vehicle & Oil 493 PPM Iron Same Unit After Cleaning

Tests Prove When the Differential Wear Happens & Why an Oil Change is Needed Iron Wear Particles 16, 766 Miles on Vehicle & Oil 542 PPM Iron Same Unit After Cleaning

Tests Prove When the Differential Wear Happens & Why an Oil Change is Needed Iron Wear Particles 50, 994 Miles on Vehicle & Oil 608 PPM Iron Same Unit After Cleaning

Tests Prove When the Differential Wear Happens & Why an Oil Change is Needed Very Clean Magnet 146, 764 Miles on Vehicle 18, 101 Miles on SVG 83 PPM Iron Same Unit After Cleaning

Tests Prove When the Differential Wear Happens & Why an Oil Change is Needed 50, 994 Miles on Vehicle & Oil 6, 869 Miles on Vehicle & Oil 146, 764 Miles on Vehicle 16, 766 Miles on Vehicle & Oil 18, 101 Miles on SVG

When Does Most of the Wear Occur? Vehicle #1 #2 Miles on Vehicle 6, 869 16, 766 Miles on Oil 6, 869 16, 766 Viscosity 14. 55 14. 57 Iron Wear PPM Oil Type 493 GM Factory Fill 542 GM Factory Fill #3 50, 994 14. 58 608 GM Factory Fill #4 146, 764 18, 101 14. 97 83 AMSOIL SVG

How Good are AMSOIL Gear Lubes? “Trivia” 1. Given a vehicle that travels 60 mph and has a tire height of 28 inches, the tire must make 663 full rotations in one mile. The ring gear turns the same amount of revolutions the tire does. 2. AMSOIL recommends 100, 000 mile differential oil drains for normal service. 3. The amount of ring gear revolutions in 100, 000 miles is 66, 300, 000. 4. If the gear ratio is 3. 73 to 1 then the pinion gear turns 247, 299, 000 times in 100, 000 miles. 5. According to Ford, petroleum gear oil needs to be changed every 3, 000 miles or 1, 989, 000 ring gear revolutions. Conclusion: AMSOIL makes a GREAT line of gear lubes to protect gears for a quarter million revolutions and for less $.

Where is AMSOIL Priced VS Competitive Oils?

May 2006 “The First in Synthetics”®