Originally Posted by
Derfred
Ahh but could this engineer quantify what additional wear engine braking would have on his gearbox? Or was he just making !!!! up?
I'm inclined toward the latter. I've never heard of compression braking harmful to a transmission. Certainly, it is completely normal for trucks, and in fact trucks are frequently equipped with devices which increase the effectiveness of compression braking. I'm not seeing a reason why compression braking would be any more harmful to a gear train than accelerating.