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Old 08-10-2008, 08:37 PM
Sid Lambert Sid Lambert is offline
 
Join Date: Jul 2005
Location: North Atlanta
Posts: 1,120
Default Oil shelf life?
I have a case of AeroShell multi-grade (50w50 semi synthetic) that is about 10 years old. Does oil have a shelf life or can I use this old case?
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Sid Lambert

RV-7 Sold
RV-4 - Flying - O-320 Fixed Pitch - Red over Yellow
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Old 08-10-2008, 08:55 PM
dealfair dealfair is offline
 
Join Date: Feb 2006
Location: George West, TX
Posts: 567
Default Oil shelf life
Sid,

I read in GAN (General Aviation News) a couple of weeks ago that AeroShell 15W50 has a shelf life of 5 years.

I phoned a petroleum engineer friend working for Valero refinning about that. He says the main thing is the additives will settle out. His soulution to the problem is just shake the can vigorusly and use the stuff.

Makes sense to me

Deal Fair
Rv-4 (N34CB)
George West, TX (8T6)
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