i am going to be charging my AC system within the next couple of days. i will be using duracool (yes, i have read at least one large thread on the pros and cons. i am aware of the safety issue, but that is a risk i am willing to take.) anyway, my question is, how much oil should i put in the system? i have been told 3 different things by 3 different people, all of whom should have the correct info. called the dealer, and he told me 3 ounces. that sounds like not enough. my dad's mechanic told me "about 4 ounces." the duracool guy said something like 6.63 ounces (i don't remember the decimal, and the whole number may have been 7), but he said it wouldn't hurt to put up to 10 ounces of oil in. i don't want to screw this up...can you guys help me out?

ps-> the system has NOT been flushed, however a vacuum HAS been pulled.

thanks

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1985 300D Turbo "Eunis"