What gear oil

[Waterloo]

(03-08-2018 )superbug Wrote:  OK, dumb question... Supertech GL5 at Walmart for $13 a gal or the Sta-lube GL4 at Amazon for $39.

Is the GL4 that much better?

GL4 has the additives that our older, pre SCR motors need, GL5 is for the SCR trucks, due to the emissions. But, I believe Supertech makes a GL4 gear oil, Rawze used it for a spell. I use Sta-Lube, GL4, order off of Amazon.

[Magard]

Maybe Rawze can comment agian.
https://www.regulations.gov/document?D=F...-0360-0001
I always thought gl5 was for limited slip rears but I might be mistaken. Looks like it’s ok from this video

[sbtrucking]

Supertech gl5 is not for limited slip diffs,
You can use it to top it out only not as complete fill, it does not have friction modifiers so it can cause damagw to clutch type lsd if I remember correctly

[seldomseen]

I prefer Lucas oil additives :)

[Waterloo]

(03-10-2018 )seldomseen Wrote:  I prefer Lucas oil additives :)

FLAMESUIT ON! LMAO!!!!

[Rawze]

(03-10-2018 )seldomseen Wrote:  I prefer Lucas oil additives :)

if it works for you then good luck with it. Here are my own thoughts...
http://rawze.com/forums/showthread.php?tid=109

[seldomseen]

(03-10-2018 )Rawze Wrote:  

(03-10-2018 )seldomseen Wrote:  I prefer Lucas oil additives :)

if it works for you then good luck with it. Here are my own thoughts...
http://rawze.com/forums/showthread.php?tid=109

I just bought 2 gallons of the six available fro my up c oming spring and summer oil changes ;) I don't think you need gear lube in the winter months added

[Waterloo]

May as well use Johnson & Johnson Baby Oil... It is the additive package we are after. Lucas does not have that.

[Magard]

(03-10-2018 )seldomseen Wrote:  I prefer Lucas oil additives :)

Your kidding right. What’s up with the smiley face.
I would think you would want something more like