1. STIHL Inc. Mix Oil Comparison

2. STIHL Inc. Mix Oil Comparison
500+ hour static run test
Seven BR 600 blowers
Test results from June 2006
Machines ran at W.O.T. 24 hours around the clock
Represents approximately 1 year of professional use
All oils mixed per manufacturer‘s instructions

3. Crankcase STIHL HP Ultra STIHL HP Super STIHL HP STIHL Low Smoke
Amsoil ® 100:1
Shindaiwa One™
Echo Power Blend®

4. Crankshaft STIHL HP Ultra STIHL HP Super STIHL HP STIHL Low Smoke
Amsoil® 100:1
Shindaiwa One™
Echo Power Blend®

5. Piston Crown STIHL HP Ultra STIHL HP Super STIHL HP STIHL Low Smoke
Amsoil® 100:1
Shindaiwa One™
Echo Power Blend®

6. Piston Crown Carbon Build-up
STIHL HP Ultra
STIHL HP Super
STIHL HP
STIHL Low Smoke
Amsoil® 100:1
Shindaiwa One™
Echo Power Blend®

7. Piston Skirt STIHL HP Ultra STIHL HP Super STIHL HP STIHL Low Smoke
Echo Power Blend®
Amsoil® 100:1
Shindaiwa One™

8. Exhaust Valve STIHL HP Ultra STIHL HP Super STIHL HP STIHL Low Smoke
Amsoil® 100:1
Shindaiwa One™
Echo Power Blend®

9. Combustion Chamber STIHL HP Ultra STIHL HP Super STIHL HP
STIHL Low Smoke
Amsoil® 100:1
Shindaiwa One™
Echo Power Blend®

10. Spark Plug STIHL HP Ultra STIHL HP Super STIHL HP STIHL Low Smoke
Amsoil® 100:1
Shindaiwa One™
Echo Power Blend®

11. Performance Compression (PSI) Max RPM STIHL HP Ultra STIHL HP Super
500 Hours
500 Hours
New
Variance
New
Variance
STIHL HP Ultra
STIHL HP Super
STIHL HP
STIHL Low Smoke
Amsoil® 100:1
Shindaiwa One™
Echo Power Blend®
170
180
180
140
150
110
160
120
+10
-30
-60
-20
-10
7210
7230
7190
7310
7180
7200
6940
7350
6900
6860
6500
6600
6800
6850
+140
-330
-810
-580
-400
-90

12. Compression Comparison (PSI)

13. R.P.M. Performance Comparison

14. Percentage of Leakdown at 500 hours