Rear axle leak
June 8th, 2019, 11:15 AM
#11
Interesting. The silverado manual doesn't have it listed either. It's probably supposed to be a lifetime thing with a top off if low. I'm running Mobil 1 fully synthetic in mine and I rarely tow. I'll probably do every 100,000 miles. I've read recommendations of every 30,000 miles if you tow often.
