Diff oil recommendations

[estoril]

Just wondering what you guys think about the diff oil with "FM Booster" that is available as an additive/alternative to the standard Castrol SAF-XJ 75W140.

I have read that it quietens down noisy diffs but a the cost of accelerated wear and possibly different LSD action....

Thoughts?

[cslsuperfan]

Just wondering what you guys think about the diff oil with "FM Booster" that is available as an additive/alternative to the standard Castrol SAF-XJ 75W140.

I have read that it quietens down noisy diffs but a the cost of accelerated wear and possibly different LSD action....

Thoughts?


just had this added to the Castrol gloop on an Insp2

early days as I've only done 200 miles

Bartlett recommended it.

[estoril]

just had this added to the Castrol gloop on an Insp2

early days as I've only done 200 miles

Bartlett recommended it.

How many miles has your car done and was/is the diff noisy?

[cslsuperfan]

How many miles has your car done and was/is the diff noisy?

60K on the original diff

plumbed for it as the back of the car has been stripped to accommodate the cage and the diff noise is more noticeable.

diff was given a clean bill of health.