Baja Shock fluid, fork oil / engine oil/ synthetic / mineral

Steve2021

Active Member
Messages
27
Hi, I have a Baja mainly for bashing around in the garden / farm fields and want to freshen up the shock oil...

I don't know what thr previous owner was using but I see alot of talk about people using fork oil and some even use engine oil..

Also I have seen synthetic oils and mineral oils, which do you use for the baja shocks??

I have some 30w Briggs and Stratton ride on mower oil would that work in the baja shocks?

Also any idea on a oil weight setup for general offroad/ field bashing? Rear shocks have 16 holes and front shocks have 2 holes

Thanks
 

MonsterAir

Lone Racer 🤠
Messages
2,103
Location
Long Island NY
Silicon oil is what I use. Fork oil is so thin that it leaks out faster and heats up more than silicon. Stock the shocks come 3 hole piston in fronts and 12 hole for the rears. Right now I'm using 45wt for fronts and 25wt for rear. Start with something similar and work from there. My setup is really soft which is what you'll want to an extent. If you do jumps maybe go 5-10wt heavier. Good luck 👍
 

Z.hb71

Well-Known Member
Build Thread Contributor
Messages
19,424
Hi, I have a Baja mainly for bashing around in the garden / farm fields and want to freshen up the shock oil...

I don't know what thr previous owner was using but I see alot of talk about people using fork oil and some even use engine oil..

Also I have seen synthetic oils and mineral oils, which do you use for the baja shocks??

I have some 30w Briggs and Stratton ride on mower oil would that work in the baja shocks?

Also any idea on a oil weight setup for general offroad/ field bashing? Rear shocks have 16 holes and front shocks have 2 holes

Thanks
I use 45wt rc shock oil all around . I wouldn't use anything else other then the rc stuff, could damage the seals. And the proper shock oil is so cheap why screw around
 
Messages
3,434
Location
Queens
Silicon oil is what I use. Fork oil is so thin that it leaks out faster and heats up more than silicon. Stock the shocks come 3 hole piston in fronts and 12 hole for the rears. Right now I'm using 45wt for fronts and 25wt for rear. Start with something similar and work from there. My setup is really soft which is what you'll want to an extent. If you do jumps maybe go 5-10wt heavier. Good luck 👍
You have a Baja?
 

Steve2021

Active Member
Messages
27
Silicon oil is what I use. Fork oil is so thin that it leaks out faster and heats up more than silicon. Stock the shocks come 3 hole piston in fronts and 12 hole for the rears. Right now I'm using 45wt for fronts and 25wt for rear. Start with something similar and work from there. My setup is really soft which is what you'll want to an extent. If you do jumps maybe go 5-10wt heavier. Good luck 👍

Silicone rc shock fluid

But I thought the 1/5th Bajas were Not designed for Silicone Shock oil as it damages the seals? The standard stuff is petroleum oil based, not silicone...??

I read that it also states on the manual not to use Silicone oils?

Thanks
 
Messages
13
Silicone rc shock fluid
Hi,

I am in the process of changing out shock oil on my pitbull x 1/5. Basically a hpi 5b baja bolt for bolt. Anyways I was getting ready check check shocks as they were sagging when I saw these were running without oil. That's another matter but I will add oil. I don't find any specific info for my rig but I did come across info that you should never use silicon based oil in 5b baja. Interesting
 

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Z.hb71

Well-Known Member
Build Thread Contributor
Messages
19,424
Hi,

I am in the process of changing out shock oil on my pitbull x 1/5. Basically a hpi 5b baja bolt for bolt. Anyways I was getting ready check check shocks as they were sagging when I saw these were running without oil. That's another matter but I will add oil. I don't find any specific info for my rig but I did come across info that you should never use silicon based oil in 5b baja. Interesting
I have reat that before however I've always used silicone oil and never had an issue
 
Messages
13
I have reat that before however I've always used silicone oil and never had an issue
Thanks. Difficult to really know which way to go, but the warranty is long gone on this rig so not much too loose I think. Oil is oil in this case. Before I go and buy proper shock oil I just used 2-stroke oil to check for any leaks ( remember I mentioned that the shock were bone dry), and sure enough the bottom seals leaks. I can get a shock service kit but can anybody tell me if I can get a off-the shelf o-rings to seal the bottom shock end?
 
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