An old trick was to add saw dust into the oil, it ran much quieter , but I wouldn't try it .
Add banana peels, I've that heard also ...
I know a guy that filled his with roto-tiller gear oil, thick as molasses, I don't know what the outcome was ... don't do it!
-- Edited by Pontiacanada on Wednesday 5th of June 2013 09:43:25 AM
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Prince Edward Island
'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.