[DeTomaso] Lucas oil additive?
JDeRyke at aol.com
JDeRyke at aol.com
Sun May 8 15:56:00 EDT 2011
There are several types of "synthetic" oil depending on what the mfgr
started with. Some will swell some kinds of seals- make them softer and slightly
tighter-fitting, while other kinds shrink some seals making them looser. A
couple of brands of synthetic are designed to do both in a sort of 'balancing
act'. The shrinking action produces leaks, which is why synthetic "works"
in some installations and not in others. Both the 351-C engine and the ZF
transaxle predate current synthetics. You gotta try your favorite synthetic
in your engine or ZF to find out which way it goes for you.
If you do get leaks, obviously you have 3 remaining choices: you can either
change type of synthetic and hope the new brand does not shrink your curent
seals, or change the weeping seal to a different type (teflon one-piece
rear main seals are available for 351-Cs but need machine work to fit), or
switch back to non-synthetic lube if it sounds like the adaption required is not
worth the gain from synthetic. Also obviously, recommendations for one
synthetic over another from this list depend heavily on what's installed in
those who say synthetic works for them. Good luck sorting it all out- J DeRyke
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