Clutch fluid

6MT

I wish I knew why manufacturers use such crappy fluid in all these systems (clutch, engine, transmission, differential). Besides, of course the obvious.... $$$.

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Andrew

2009 370Z Sport/Touring 6MT sold
2013 Honda Civic Si coupe D/D

ChrisSlicks

The clutch fluid gets nasty no matter what the fluid. I have had AP600 and Motul in there and after 1000 track miles it is dark and nasty looking. It seems to pick up a lot of contaminants, probably from the slave cylinder. The fact that it isn't even on the standard service item list is astounding.

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Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms

6MT

Add to that the diff fluid... it's also nasty after only a couple of thousand miles.

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Andrew

2009 370Z Sport/Touring 6MT sold
2013 Honda Civic Si coupe D/D

Mt Tam I am

With 500 track miles, do you think I should change the diff fluid as well?

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Nissan Motorsports 34R Oil Cooler. Stillen CBE. Hotchkis Sport Sway Bars. KW Variant 3 Coilover System. Stillen Gen3 CAI. Michelin Pilot Super Sport. Stillen Brake Ducts. Carbotech™ XP10/XP8 Pads. Z1 Front Rotors. Z1 Stainless Brake Lines. Two degrees of camber

josh@z1

Also remember the clutch fluid on these cars should be changed a bit more often than other vehicles because the fluid gets "cooked" more having to travel inside the bellhousing and sitting there baking after long drives and track days.

It is definitely worth the $10 of Motul to change the clutch fluid every couple oil changes and before / after track days.

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