Stricly speaking "topping off" is legal as long as you can say that the system is leaking less than "x" oz per year. I don't remember exactly what "x" is. Topping off becomes iffy when you use blended refrigerents. Some can be topped off but only a certain # of times and then only a maximum amount at a time. As long as the system is pressurized above atmospheric and wasn't run much you can assume it is still tight with no air or moisture. You will know when you top off and read the head pressure. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "John Macias" <jdm5@xxxx> wrote: > I thought that "topping off" a system was a bad thing, and it needed > to be completed evacuated? I am incorrect? > > John > #7009 > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/