Originally Posted By: WylieCoyote
Originally Posted By: NH73
Good, mine is an 04 and wife had since new. She was pretty faithful with the half year oil changes. I like to use synthetic to go to the once a year oil change. It had a trans flush around 46,000 miles. Ford manual says to do rear end at 150,000 miles. Do you think thats too long? They also specify 75w90 back there meaning synthetic.
I changed the rear end oil in my 2005 at 90,000 miles (around 2013). Bought the truck brand new. There were absolutely no leaks, so I don't know if it was always low, or if it evaporated, but it was very thick, very polluted, and there wasn't much of it. I put WAY more in than came out. Don't wait until 150,000.
Oh wow. I was going to say that its not 150,000 unchecked miles. But before I wrote that I checked Ford's recommended maintenance schedule and there multi point inspection and you know what? Its not in there. Did you do a lot of heavy hauling/towing? Year? The way that sounds, I should do mine.