Castrol GTX 20w50, 80 miles, 01YZ250F

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Castrol GTX 20w50 raced/ridden for 80 miles in a 2001 Yamaha YZ250F. Testing done by Blackstone Labs. INSOLUBLES: .2% WATER: 0.0% ANTIFREEZE: 0.0% FUEL: < 0.5% FLASHPOINT IN \xbaF: 430 SUS VISCOSITY @ 210 \xbaF: 70.6 ALUMINUM 24 CHROMIUM 1 IRON 5 COPPER 2 LEAD 213 TIN 0 MOLYBDENUM 135 NICKEL 1 MANGANESE 0 SILVER 0 TITANIUM 0 POTASSIUM 0 BORON 66 SILICON 9 SODIUM 3 CALCIUM 1885 MAGNESIUM 18 PHOSPHORUS 792 ZINC 929 BARIUM 0 the lead is because i use leaded fuel, not pump swill. the aluminum is from the pressure plate of my clutch.
 

sunruh

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Jun 28, 2005
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Cedar Park, TX
you can tell when the oil is worn out because the clutch starts grabbing. this oil is cheap enough to change very very frequent. it is also available darn near everywhere. it has a decent price vs performance rating.
 
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