[DeTomaso] Mixed messages about differential fluid

[Tom Baranek Home]

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  ----- Original Message ----- 
  From: JDeRyke at aol.com 
  To: tbaranek at earthlink.net ; detomaso at realbig.com 
  Sent: Tuesday, June 05, 2007 1:58 PM
  Subject: Re: [DeTomaso] Mixed messages about differential fluid


Synthetic dif fluid has caused leakage thru old seals in the past, in some 
ZFs that initially did not leak. ZFs are '60s technology so modern 
'improvements' often aren't. Positraction fluids are recommended for all clutch-type 
differentials (of which the ZF is one) to reduce chattering in turns, but that 
decision may have been removed from our consideration, as most manufacturers now 
simply add it to ALL their diff-fluids. On the gallon of Valvoline 80W90 I 
recently bought from NAPA auto parts, it says 'contains limited-slip additives. 
Will not harm non-limited-slip differentials'. And when I asked Lloyd Butfoy 
about the "posi-lube issue" many years ago at 'Vegas, he agreed that it will help 
some, do nothing for others and not harm any. 'Nuff said. 
Good luck- J DeRyke************************************** See what's free at 
http://www.aol.com.