this is the reusable flush can I use...

the flush agent can be a quality designed chemical, about $40/quart, or some have used acetone as a fluid.
as long as it dissolves the oil and is TOTALLY removed, it's not critical what's used, but it's GOTTA all come out! it does help if the chemical you use is compatible with rubber automotive hoses!

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!