Quote:
Originally Posted by Matt Monson
No difference. Aftermarket gears still use stock synchros.
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Matt, I put in the HD Motul 80w 90 with no lsd additive. No noticeable noise from the xf lsd and gears seem slightly smother to row through.
This was 400 track miles on the Gear 300 Motul 75w 90
Will be curious to see if wear is any less. I'll pull this current oil at the same interval of the last.