tappet noise

[charger490]

have you guys heard of putting a little tranmission oil in the regular oil to quite the noise in the engine? truck has 94000 miles on it and the tappet noise is getting worse. thanks

[ODZKing]

Yep, did that back years ago.  The detergent used to clean up whatever grit was in there and free things up.
Now they have other products.  I used "Restore" on my 87 Lebaron ... worked as well.  Be sure the get the 4 -6 or 8 cyl version, which is ever is correct for your car.  It does make a difference.

[charger490]

thanks ODZKing

[elacruze]

We used to put a half-quart of diesel fuel in the oil and let it idle for 5 minutes. Did the trick usually. Of course you change the oil immediately afterwards.

I know lots of old guys who use Marvel Mystery Oil in their crankcases all the time. I'm sure it would work for a day or two before changing the oil too.