Hallo Jungs und Danke für den Hinweis. Da war ich falsch bzw. unvollständig informmiert.
Ich habe dazu folgende Aussage gefunden, die Euch recht gibt:
"Regarding Additives and the G80, the Below Information is from GM......
LOCKING DIFFERENTIAL LUBRICANT (SERVICE INFORMATION) #91-4-109
SUBJECT: LOCKING DIFFERENTIAL (G80) LUBRICANT - (SERVICE INFORMATION)
VEHICLES AFFECTED: ALL LIGHT TRUCKS EQUIPPED WITH G80 REAR AXLE ALL YEARS
Some Light Duty Trucks equipped with Locking Rear Axles (G80) may Exhibit Rear Axle Chatter, Especially When Turning a Corner from a Stop.
This Condition of Alternate Engagement and Disengagement of Clutches in Differential Assembly is usually caused by Contaminated Axle Lubricant.
The Use Of Any Additive In Locking Rear Axles (G80) Is Not Recommended:
Rear Axle Additives are Designed for use in Limited Slip Differentials which are Normally Installed in Cars. All Light Duty Trucks Equipped with RPO G80 Make Use of a Locking Differential and the Use of Additives will Delay the Engagement of the Locking Mechanism and May Decrease Axle Life.
***WARRANTY INFORMATION:
As Specified in Light Duty Truck Maintenance Schedules, Locking Rear Axle Fluid Drain and Refill is Required Owner Maintenance at the First Engine Oil Change. Failure to Drain and Refill the Rear Axle as Specified May Contribute to a Later Axle Chatter Condition. Refer to the Appropriate Light Duty Truck Maintenance Schedule or Service Manual, Section OB, for Further Details on Change Intervals."
