Diff oil recommendations

estoril · 14-04-2015, 08:16 AM

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 · 14-04-2015, 08:19 PM

Quote:

Originally Posted by 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?

just had this added to the Castrol gloop on an Insp2

early days as I've only done 200 miles

Bartlett recommended it.

estoril · 14-04-2015, 08:28 PM

Quote:

Originally Posted by cslsuperfan

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 · 14-04-2015, 08:39 PM

Quote:

Originally Posted by estoril

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.

14-04-2015, 08:16 AM	#1
estoril S4 - Getting the hang of it Join Date: Feb 2013 Location: Bucks Posts: 143 Casino cash: $9222	Diff oil recommendations 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?