Thread: Brakefluid and gearboxes

Interesting to say the least. Cheers, Mick.

Very interested also! Or should I say hoping this is an ancient long lost remedy and not the equivalent of an advert starting with "mechanics hate him, with this simple fix" :-)

I'd never heard of this either. He came to me in a carpark to look indepth at the Puma. He said that he used to work on the "old Land Rovers", by that he meant series and early 90/110 models. He was interested in how they had changed over the years. Anyway one of the things he asked about was my gearbox. I said it was fine. That's when he started talking about the "old gearboxes" and leaks etc and how they used to deal with them. That's how this came about. I queried it on the Defender2 site also and some people replied that they had come across it. Here's the link.
DEFENDER2.NET - View topic - Brakefluid and gearboxes
Anyway I posted it as I thought it was interesting.

Not an old mechanics tale But I've found Nulon G70 gearbox treatment works miracles in worn gearboxes. I'd never use any engine oil additive though.

Manual Gearbox and Diff Treatment - Nulon Products Australia

I've been using it for 20years ... and it really does work as advertised. It does make absolutely no difference to gearbox that work well though

seeya,
Shane L.

G'day All,
Most modern brake fluids are base on Polyglycol.
Here is a link to Polyglycol gear oils. Interesting reading regarding effect on Elastomisers.
Polyglycols for Lubricating Large Gear Drives- Gear Solutions Magazine.

(Also "old mechanics" may have used a brake fluid not based on Polyglycol.)

Personally I would not try it to see what happens in my gearbox.!!

Chris