Originally Posted by Tristor (Post 3269918)

WD-40 is primarily a solvent, not a lubricant. It can temporarily stop squeaks but an aerosol fluid film like Corrosion-X or similar is a much better bet. If you can, use a grease gun and suspension grease like AMSOil Dominator Racing Lube and grease your bushings under pressure.

Originally Posted by new2subaru (Post 3270193)

Correct but it works and doesn't attract a shit ton of dirt. Not as bad as oils or grease. Fluid film is fantastic but makes a mess...Ohlins actually specs WD40 in their manual.


Here you can read up on WD40 myths


https://www.wd40.com/myths-legends-fun-facts/

Originally Posted by Tristor (Post 3270265)

Well, WD-40 contains a good amount of mineral oil which means it is pretty good on rubber and plastic polymers, can work to help prevent them from drying and cracking, but because of how thin it is and the fact it evaporates quickly it often acts more to clean the area of dirt and debris and less to lubricate it. It lubricates while wet, but it doesn't stay like a grease or fluid film does. Once it evaporates you could be worse off than you started as it tends to displace any grease that was remaining from initial installation. As a general rule I use suspension-specific grease or wheel bearing grease when lubricating suspension components and I try to do it either under pressure (if it's got a zerk, even better) or I remove and reinstall the part in order to fully and properly lubricate it.

A lot of people don't understand that once you start modifying your suspension that the maintenance required goes up considerably. But if you do it correctly, these components will last a long time and perform at their peak.