| Description of Issue/Upgrade |
| 30K mile service, Amsoil 20W50 synthetic, Amsoil Synthetic Primary and Amsoil Severe Gear |
| Service note 1 - Date - 2021-01-19 |
| DURING SERVICE TECHNICIAN NOTED THAT ABNORMAL NOISE COMING FROM ENGINE AREA. CUSTOMER AUTHORIZED DIAGNOSTICS OF NOISE. |
| Service note 2 - Date - 2021-01-22< |
| UPON FURTHER DIAGNOSTICS OF NOISE, FRONT CYLINDER ISOLATED AND AFTER COMPRESSION TEST FOUND THAT FRONT CYLINDER IS AT 95 PSI AND REAR CYLINDER IS AT 135 PSI. MAX VARIANCE IS 10%. CUSTOMER AUTHORIZED TEARDOWN OF FRONT CYLINDER TO FIND CAUSE OF FAILURE. |
| Service note 3 - Date - 0000-00-00< |
| 1 |