12. Shocks and Shock Oil
The stock shocks are actually pretty solid. They do a good job of doing what they are supposed to do.
The stock shock oil, on the other hand, is a bit thin. It's supposed to be 30w, but it seems a bit less than that. Some people have reported that their shocks didn't even seem full of oil when they went to change it out.
Shock oil is relatively inexpensive, so buy a couple of different weights and try them out until you get to where you like.
For most surfaces where there aren't a lot of bumps, heavier oil is generally preferred. I run 40w all around in my trucks that I'm using primarily on the street.
For jumps and bumpy running, lower weight is best. I run 30w in the front and rear of my Circuit that is primarily used for track driving. It seems to do a pretty good job. I have not yet tried 35w, but may eventually try that in the rear of the truck.
Even if you just go and get a bottle of nice 30w oil and replace the stock oil, you'll probably see a bit of a handling improvement.
Before you just go buy oil, though, know that you MUST use silicone oil. Simply using motor oil won't work. You can get it online or at the hobby shop for a couple of bucks a bottle, and one bottle will be more than enough to do quite a few shocks.
If you decide that you would like to upgrade the shocks, too, then the Electrix brand aluminum shocks are actually very nice. They are easily adjustable due to their threaded bodies, and in my opinion they do a better overall job than the stock shocks. I believe it has to do with the fact that they are aluminum means that there is zero flex in them when they are under compression, where even just a tiny amount of compression on the stock ones can cause them to act a bit oddly.
With the aluminum shocks I have noticed that the truck jumps, turns, and takes bumps more predictably than it did with the stock shocks.
From a purely aesthetic standpoint, as well, they look VERY cool.
Taken from the sticky at the top of the forum titled: Recommended Upgrades for ECX (Electrix) Vehicles
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