WoREoD Posted June 4, 2006 Share Posted June 4, 2006 My fly-killer was in for service last week and I asked them to look at my crunching downshift synchro problem. My dealer (who I trust!) said they couldn't find anything significant but they changed the gearbox oil to a synthetic one as that might help. After two days driving it seems that: a) almost every shift now is "clunky", and when cold, the first few shifts need me to be very positive. Any comments on synthetic oil in the gearbox? Quote Link to comment Share on other sites More sharing options...
Removed Posted June 5, 2006 Share Posted June 5, 2006 I read on US sites that you need to be careful on what oil you use in the 'box, as some can do more harm than good. I'm sure in the 350z-tech wiki pages there'll be the answer of what grade to use... have a nose there. Quote Link to comment Share on other sites More sharing options...
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