My new to me K75 would make a sound, almost like whistling or a whining sound. I changed the engine oil, trans oil and final drive oil. I used Shell Advance full synthetic in the engine. Synth 90w in the final drive and 75w90 in the trans.
Oil in the engine was in good shape. The trans and final had a black moly type oil. After the oil changes there is no whining sound from the engine. It’s quieter. I assume it was the oil change, but I don’t know how.
Oil in the engine was in good shape. The trans and final had a black moly type oil. After the oil changes there is no whining sound from the engine. It’s quieter. I assume it was the oil change, but I don’t know how.
