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What kind of oil can i put inside fan to quiet it down? - Page 2

post #11 of 14
Quote:
Originally Posted by nleksan View Post

What I have been doing for, geez, I guess the last decade or so, is using (TRUE) Syntheticmotor oil, addi ng just a drop or two into the bearings. It was initially just a "tide me over" kind of thing, as I always have 100-200+ quarts of Redline due to my main hobby (modifying and racing, road course/time trial/W2W/GTALMS/etc, BMW's and other European cars). It was either that or gun oil, and the Redline seemed like a better way to go.

It turned out that I never needed to get anything else, as being an Ester basestock oil (Group 5) and having proven itself hundreds of times over in fully built race engines of mine, keeping a fan spinning is like child's play for the stuff. I have found that it has the added benefits of quieting the fans, and not only preventing buildup of dirt but removing any existing crud.

The fans I first tried this with, some inexpensive Thermaltake 80-92mm sleeve/ball bearing fans, have been running nonstop ever since, with not one fan failing, since 2004!


This is the best, but most of us don't want to leave a quart of the stuff hanging around, when we use such a tiny bit.

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post #12 of 14
motor oil is good, however it may be abit heavy for the application. make sure you get something that's light like a 5w30. the higher viscosity oil tend to cause too much resistance for low powered fans and will actually slow the fan down to a lower RPM due to the thickness of the oil. also you want to make sure you get synthetic oil instead of standard oil. so it doesn't gunk up your fan in the long run. you don't want to use too much. even 1 drop may already be overkill. it's almost like using TIM, too much is actually a bad thing.
post #13 of 14
I have been building BMW/Porsche motors for years, for competition, I have a pretty good handle on tribology wink.gif
   
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post #14 of 14
Quote:
Originally Posted by nleksan View Post

I have been building BMW/Porsche motors for years, for competition, I have a pretty good handle on tribology wink.gif

no doubt. just pointing it out for the OP just in case he's thinking that 99c quart of 20w50 is a good star biggrin.gif
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