Transmission Oil

[tom.w.wagner@Central.Sun.COM (Tom Wagner - Program Manager)]

To All of the wisdom :

I have a 67 "B" that is in bad need of 
transmission oil.  This is a 4 speed all
synchro with an LH type OD unit.  The manual 
says to use 20W50 Castrol, but people on the 
net say to use 30W, detergent - non-detergent.

So Questions #1:  Who is right????

Question #2:  How can you tell if the 
SAE 30W is detergent or non-detergent oil???

Question#3:  What is the correct weight and is
it to be non-detergent or detergent oil.

Thanks for the clarification in advance.


Tom Wagner
67 MGB