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Good gearbox with no know issues: Royal Purple Syncromax, Redline MT90, Motul Gear 300 (most expensive)

Good gearbox with minor crunch issue: Redline Shockproof Lightweight (very popular, I use it myself)

Rooted gearbox: Redline Shockproof Heavyweight

I'm not sure about Castrol to be honest, I've read people dropping their current oil for Castrol and it was worse than the old oil (some even putting the old oil back in)

Good gearbox with no know issues: Royal Purple Syncromax, Redline MT90, Motul Gear 300 (most expensive)

Good gearbox with minor crunch issue: Redline Shockproof Lightweight (very popular, I use it myself)

Rooted gearbox: Redline Shockproof Heavyweight

I'm not sure about Castrol to be honest, I've read people dropping their current oil for Castrol and it was worse than the old oil (some even putting the old oil back in)

thumbsup.gif

my synchro's are pretty "chunky". going into 4th now sometimes grinds. sometimes i go to grab 3rd from 2nd and it gets jammed in the middle somewhere.. only when i go from 2nd to 3rd though.

should i try heavyweight first or lightweight?

also does anyone know how many litres you need? (manual 25 box)

Thanks.

I don't know about you guys, but i see the redline oil as a really expensive bandaid fix. By the sounds of it, all you's are really doing is hiding the fact that your gearbox is f**ked. I would rather spend what the redline oil costs on a rebuild kit/or a workshop rebuild if you don't know what you're doing. If the box was operating well it wouldn't matter what brand you used as long as it was the right grade.

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