300V don't offer 10W30.

As far as the diff, I use Gear 300 75W90.

 

Gear 300 is GL-5 rated, but supposedly safe for yellow metals (or so Motul claims), even though it contains sulfur based additives?
http://forums.vwvortex.com/zerothread?id=2746598

 

Unless you taking your car to the edge and back frequently 8100 will be fine. You can also do a mix of 300V and 8100 if you want a little extra protection. The difference with 300V is has a special shock package where if you are really pushing very hard and the oil film deteriorates the package will protect from metal to metal contact. We are talking about events such as dropping all your oil on the racetrack. So really 300V is the overkill of all overkill and anymore than a 40% mix with 8100 is, well overkill.

 

I use Gear 300 in my tranny and it's great. My car rarely sees a cold start under 70 ambient though and one of the issues with 300 is that tranny will feel pretty notchy the colder it gets. When it's real cold it can be harder to change gears. Once it warms up it feels great though. Much better than Honda MTF.

 

ill be getting and using motul 300v 5w40 real soon.

 

[QUOTE=carrera4,Sep 19 2008, 09:18 PM] I use Gear 300 in my tranny and it's great.

 

The synchros are carbon not brass.

 

Carbon coated. (I thought the early trannies were not.) Motul is a fine brand, at least the equal of Amsoil, and used by many european race teams and several ALMS teams here.

 

right, they are carbon coated, and there are other yellow metals in the transmission as far as I know

 

ap1's are not coated... ap2s are coated, but still... just coated