Just a little fyi. Since all the baloney with my tahoe. It now has 320 thousand on it. It does not use a drop or leak a drop of oil. Put a little bit of marvel in it quited down the lifters and after all that runs great. Miledge is good for a tahoe. Lots of power no smoke whatsoever. Other than a little hydroboost leak all is perfect with the aging machine. We are going to try for 500 thousand miles. My next endeavour will be the front end. It is all original. Everything. Ofcourse got a bit of play in everything, I grease it every month to make up for the loosenes and will change it all soon. Take care all you wonderul people.