How much friction modifier ???

[Canadian1968]

I am getting ready to put the rear end back in the car . The friction modifier , reads on the bottle " 2-5% of gear lube weight"  that is confusing to me . I put in 2 lifers of gear lube ( just starts to trickle out the hole when level). So how much modifier do I need the bottle is 125ml and is mopar brand .

[BSB67]

40 to 100 ml.  You can probably get away with less if you are using synthetic gear lube.

Add 50 ml.  test drive.  Go to a parking lot and do some figure 8s.  Add another 25 if that did not work and try again.

[Canadian1968]

So start with little less than half the bottle . Thanks!

[A383Wing]

we always used the entire little bottle....yer gonna need to drain some of the new fluid out....

should have been put in before the new fluid

[firefighter3931]

we always used the entire little bottle....yer gonna need to drain some of the new fluid out....

should have been put in before the new fluid

Same here 


Ron