>What happens if you use the cleaner and _don't_ change the oil? It degrades the lubrication qualitys of the oil, and if you use say, 4 things of Techron before you change your oil and you can wipe bearings and do all sorts of damage to really hard to get to expensive parts. Later! Eric Fletcher '87 5KCSTQIA2RSR2B STEADI RIC@aol.com