What does marlin recommend for tcase oil?

[snowplow]

Sorry for the lame question, but I couldnt find anything in a search. 

Can someone tell me what marlin recommends for tcase oil? (standard case with 4.7 gears)

[freds40]

We just recommend 80/90. If you want synthetic we've used Red line, Amsoil, Royal Purple. We're not picky 

[snowplow]

Thanks bud, I also forgot to ask- Whats the capacity on these suckers? (roughly so I know how many qts to buy)

[snowplow]

sorry I didnt see the sticky...