Unopened 2 year old fluid still fine to use?

ovoyorge · 02-16-2021, 09:32 AM

Hey all,

I bought Febi Bilstein Trans gear fluid and OEM Rear Differential fluid back in summer of 2019. The plan was to replace it last year but due to COVID and recovery, plans changed.

My question is, is it still fine to use this fluid I bought in 2019 and use it now? The bottles have not been opened yet and secured in a cool location since then.

CTinline-six · 02-16-2021, 11:30 AM

If they are sealed/unopened yes they will be perfectly fine to use.

Efthreeoh · 02-19-2021, 12:08 PM

Sure is. It sits in an open-to-the-air differential. Being in a closed bottle is ideal. It's not like brake fluid.

02-16-2021, 09:32 AM	#1
ovoyorge Registered 2 Rep 3 Posts Drives: e92 M3 Join Date: Mar 2019 Location: NJ iTrader: (0)	Unopened 2 year old fluid still fine to use? Hey all, I bought Febi Bilstein Trans gear fluid and OEM Rear Differential fluid back in summer of 2019. The plan was to replace it last year but due to COVID and recovery, plans changed. My question is, is it still fine to use this fluid I bought in 2019 and use it now? The bottles have not been opened yet and secured in a cool location since then.
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02-16-2021, 11:30 AM	#2
CTinline-six Hoonigan 6816 Rep 3,000 Posts Drives: '09 328i, '98 Wrangler Join Date: Dec 2016 Location: Connecticut iTrader: (0) Garage List 2009 BMW 328i N51 [0.00]	If they are sealed/unopened yes they will be perfectly fine to use.
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02-19-2021, 12:08 PM	#3
Efthreeoh General 17201 Rep 18,691 Posts Drives: The E90 + Z4 Coupe & Z3 R'ster Join Date: May 2012 Location: Virginia iTrader: (0)	Sure is. It sits in an open-to-the-air differential. Being in a closed bottle is ideal. It's not like brake fluid.
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