2000 Expediton 4wd, 5.4l, 50k miles

Just bought this truck a month ago. Is it a good or bad idea to "flush" the engine out with additives to get all of the accumulated deposits/sludge out. Or, would a few short oil/filter change intervals clean out a lot of the deposits on their own?

The truck is super clean / straight, good fuel econ and runs out good and hard. All the basic indications of a adequately maintained truck are there but when I changed the oil/filter it got dark really fast. I guess you can truly never know how it was cared for unless you personally know the prior owner.

 

do a tune up and then change oil again and see if the deposit don't return as quickly...could be blow by of unburned fuel...oil smell like gas?

 

ENIGMA, Check this site out. Everything you will ever want to know regarding oil. Great guys and a lot of experts hang out here.

http://theoildrop.server101.com/ubb/ultimatebb.php


Later


Frank