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how do you know what wt. oil to use? is there a graph or something to look? Because I just got a Demo 8 I with a 888 RCV and its super stiff for me at 148lbs (geared). A shop recomended a softer spring and thicker oil. What should I be looking for? Of course theres a lot of preferences in terms of riders style and I plan to do a lot of drops but race DH as well.
 

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BrassBalled DropbarNinja
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Mudmanner said:
how do you know what wt. oil to use? is there a graph or something to look? Because I just got a Demo 8 I with a 888 RCV and its super stiff for me at 148lbs (geared). A shop recomended a softer spring and thicker oil. What should I be looking for? Of course theres a lot of preferences in terms of riders style and I plan to do a lot of drops but race DH as well.
softer spring or thinner oil...
 

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I work as a plant mechanic and decided that our supplier of oils would stock fork oil. They told me the equivalent grades. I ended up using hydraulic 32 oil. Works out to be 10wt i think. Its been fine, because its so cheap you can change it more regular anyway.
 

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I work as a plant mechanic and decided that our supplier of oils would stock fork oil. They told me the equivalent grades. I ended up using hydraulic 32 oil. Works out to be 10wt i think. Its been fine, because its so cheap you can change it more regular anyway.
Quality fork oil ain't that expensive. I picked up a few quarts of Motorex fork oil fairly cheap from a Motorcycle parts shop. For my bikes, it will last a couple of years. I will never again buy factory Fox or Marzocchi oil... waste of money.
 

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Discussion Starter · #19 ·
sus13 said:
Quality fork oil ain't that expensive. I picked up a few quarts of Motorex fork oil fairly cheap from a Motorcycle parts shop. For my bikes, it will last a couple of years. I will never again buy factory Fox or Marzocchi oil... waste of money.
I agree i bought a quart of synthetic oil from my local dirtbike shop for 4.99 and the LBS sells a quart of fox oil for 22.99!!!
 

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P-51 Crew Chief #38
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Red Line Fork Oil. They have a base oil that only a few oil manufactures use. It costs a bit more, but it has some amazing properties.

Less thermal expansion so your settings remain more constant

Less friction

Less foaming

Lasts longer

Even my Boxxers survived running this stuff.
 
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