Which Gearbox oil

[carlyboy]

I have a '79 Accord. The owners & workshop manual say to use a 10/40 or 15/40 oil in the gearbox ( which would be engine oil ?).
Oil manufacturers catalogues say to use eg a 75/80 or eg castrol vmx80 gearbox oil-which would be much thicker than the engine oil I guess.
Anyone have any suggestions as to what is the correct oil to use in the 5sp manual gearbox?

[Bowzer]

Honda MTF Plus API-GL4 Avaliable from your local Honda Dealer :)

[carlyboy]

Thanks. I found the honda oil expensive so am using Castrol VMX80 which is the same grade as honda - 75/80 & APGL4

[Vtec_inside]

nah use mtf ur be a happier man . vmx 80 is alrite but r gear may crunch if ur box is a little worn