just wondering whether we can use the redline lightweight shockproof in the gearbox ?? i know the recommended is mt-90 but i just tried the lightweight shockproof in another car and the difference was enormous i had motul gear 300 in that gearbox and the lightweight shockproof was soo much better .
no more crunching and smoother shifting

 

SP is gear oil with EP additives which could damage synchros in a gearbox. Not recommended.

 

agreed, the Friction Modifiers might eat the synchros, stick with the Honda MTF

 

Actually is is generally the EP additives (sulfurs) that eat the synchros - on the MY04 you also have to be concerned about the lubricity of the lube since they went to carbon syncro blocking rings.

 

if the shockproof eats synchros, y would anybody want to use this stuff ??!! wat kind of synchros are goin to go bust with this stuff ? brass type ?

 

Shockproof is designed for differentials, not gearboxes. MTL and MT-90 are designed for gearboxes.

 

The term lube pros use is "yellow" metals: brass, etc. The worst offenders are what we term "active-sulphur" compounds which GL-5's sometimes contain.

 

cdelena, which of the two, MT or MTL do you recomend for a SC s2k gear box?

 

MT-90 except for colder climates where I think the Honda MTF is best.

 

[QUOTE]Originally posted by cdelena