why does motiv tell you to not leave fluid in the tank?

kolosy · 08-22-2023, 04:53 PM

so i have probably a half a bottle's worth of castrol srf sitting in the power bleeder tank from maybe 5 months ago. is the concern just moisture absorption, or that it's going to leach something out of the tank itself? it was tightened so i don't see it absorbing more moisture than if it were in the car for that period of time.

would prefer to not waste that much $$ fluid, but will if it's ill-advised...

Ximian · 08-22-2023, 05:08 PM

If the cap is tightened, it's still not sealed. It would be even better to place it back into the original fluid container and seal that.

FCP Euro has a video on it and state to recycle any fluid still in the bleeder (5 minutes, 16 seconds).

Erickuokwa · 08-22-2023, 05:42 PM

Definitely get rid of it. I put a 2-3caps full of new fluid in it just to flush out the old stuff caught up in there too. Can’t seem to even clean the container out perfectly

spammysammich · 08-22-2023, 06:04 PM

Quote:

Originally Posted by Erickuokwa

Definitely get rid of it. I put a 2-3caps full of new fluid in it just to flush out the old stuff caught up in there too. Can’t seem to even clean the container out perfectly

Have you tried running some denatured alcohol through and air drying before you stow it away? I’ve had good results with that.

kolosy · 08-22-2023, 06:12 PM

thanks all!

08-22-2023, 04:53 PM	#1
kolosy Colonel 1550 Rep 2,072 Posts Drives: over potholes Join Date: Dec 2008 Location: Chicago iTrader: (2)	why does motiv tell you to not leave fluid in the tank? so i have probably a half a bottle's worth of castrol srf sitting in the power bleeder tank from maybe 5 months ago. is the concern just moisture absorption, or that it's going to leach something out of the tank itself? it was tightened so i don't see it absorbing more moisture than if it were in the car for that period of time. would prefer to not waste that much $$ fluid, but will if it's ill-advised... __________________ Current '21 DG X5MC, '22 X5M50i, '11 E90 M3 Recent Past '12 E92 M3 ZCP, '08 E93 M3, '18 F80 ZCP, '04 E46 M3 I think I have an M3 problem.
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08-22-2023, 05:08 PM	#2
Ximian . 1954 Rep 1,913 Posts Drives: E92 M3 Join Date: Oct 2016 Location: MN iTrader: (1) Garage List 2011 BMW M3 [0.00] 2021 BMW M3 [0.00]	If the cap is tightened, it's still not sealed. It would be even better to place it back into the original fluid container and seal that. FCP Euro has a video on it and state to recycle any fluid still in the bleeder (5 minutes, 16 seconds). __________________
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08-22-2023, 05:42 PM	#3
Erickuokwa Lieutenant 489 Rep 426 Posts Drives: E90 M3 Join Date: Apr 2017 Location: California Los Angeles iTrader: (0)	Definitely get rid of it. I put a 2-3caps full of new fluid in it just to flush out the old stuff caught up in there too. Can’t seem to even clean the container out perfectly
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08-22-2023, 06:12 PM	#5
kolosy Colonel 1550 Rep 2,072 Posts Drives: over potholes Join Date: Dec 2008 Location: Chicago iTrader: (2)	thanks all! __________________ Current '21 DG X5MC, '22 X5M50i, '11 E90 M3 Recent Past '12 E92 M3 ZCP, '08 E93 M3, '18 F80 ZCP, '04 E46 M3 I think I have an M3 problem.
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