MGB MGB GEAR BOX OIL.

[WJM]

Hi All. Sorry but its me AGAIN sorry to be a pain.
Can anyone tell me the best and type of oil to use in my gear box and diff. Regards John /ubbthreads/images/graemlins/cheers.gif

 

[79MGB16]

I use the recommended 20W50 weight in what ever flavor you like is for my 79B. I just use regular Castrol, I don't know the ups/downs of using synthetics. Anyone for synthetics?

 

[Steve]

I use the Castrol 20W50 in my 1980.

 

[Steve_S]

Castrol GTX 20W50, same as in the engine.

 

[Guest]

For the transmission, whatever you use in the engine, for the diff, 90 w gear oil
Bob

 

[aerog]

The old rule of thumb is to use as "normal" an oil as you can if you have overdrive; the thought is synthetics will cause problems with the overdrive slipping at times (not sure if it's true - I always use Castrol 20w50).

 

[WJM]

What a response. Thank you all. I will use GTX 20/40 same as I have in the engine. What a forum we have here. Until next time Kind Regards To All John. /ubbthreads/images/graemlins/savewave.gif

 

[Bruce74B]

[ QUOTE ]
The old rule of thumb is to use as "normal" an oil as you can if you have overdrive; the thought is synthetics will cause problems with the overdrive slipping at times (not sure if it's true - I always use Castrol 20w50).

[/ QUOTE ]

I never heard that...I am running Durablend 50% synthetic in my tranny for two years and haven't had a problem. I guess I will change back to the same Castrol 20-50 that I put in the engine last year.
Gotta love this Forum! /ubbthreads/images/graemlins/thumbsup.gif

Bruce /ubbthreads/images/graemlins/driving.gif