ATF In the Gearbox

I wonder if all these different approaches just shows that it doesn't matter all that much what lube you use as long as you use
something.

Onder said:

I wonder if all these different approaches just shows that it doesn't matter all that much what lube you use as long as you use
something.

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There’s probably a lot of truth in that!

But with a gearbox it’s quite easy to test ‘back-to-back’ and see the difference. That’s what I did with the Bel Ray and that why it’s now standard for me !

Now look what you have gone and done: I cannot help but to try it myself.

Uh, wait. It all has to come over from the $tate$? uh oh....pricey!

I love a gearbox oil debate

Mark Savage said:

What was the difference?

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On some it was a noticeably smoother shift.
In others it was an easier neutral selection.

Nothing major, but enough to make me think it was doing something better.

Of course, it will depend what you’re replacing etc.

Onder said:

Now look what you have gone and done: I cannot help but to try it myself.

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# Me too

Onder said:

I wonder if all these different approaches just shows that it doesn't matter all that much what lube you use as long as you use
something.

Click to expand...

A month ago I thought much the same. After seeing all the gold flecks in my friend's 750 gearbox at 2500 miles using motor oil, it seems wise to use proper gearoil or possibly ATF.

Glen

Onder said:

Uh, wait. It all has to come over from the $tate$? uh oh....pricey!

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It can take some shopping around to find over here sometimes, but usually someone has it. I confess I buy a few at a time and keep some ‘stock’.

Hi
I like another oil debate, like hell, spent 3 odd years studying oils while doing my mechanical engineering, another 30+ odd years trying to work out the snake oil salesmen talk, and various trials in the field of earthmoving heavy equipment, it is to say the least a mine field.
My experience tells me, stay with what the OEM specified within reason.
Transmission oils are complicated, they need to be because they operate under various conditions/heat/cold /transmission designs, especially compared to straight cut gears found in an old motorcycle gearboxes.
Me I just use what Norton advised and have had no problems, I have not experienced any shifting or wear problems.
In the mining game I had some wins and some losses when trialing different oils in the mobile and fixed plant, verdict now when I look back, is about even, extending oil change periods in engines on various oils trials was not a good idea, due to the complications with tradesmen not being able to fill in the data correctly, thus giving misleading results.
Seat of the pants doesn't work for me.
Modern bikes run on engine oils in the gearbox but, the gears in these bikes are by far far more accurately designed and manufactured.
Burgs

I use synthetic ATF in my gearbox for 2 reasons.

1-It provides better lube for the bushing in the output sleeve gear and I have seen considerably longer life there. It is designed for use with bronze bushings in transmissions.
2- It has seal additives that keep the seals soft.

Power or shifting has nothing to do with it. Gear protection is the same. Jim

comnoz said:

I use synthetic ATF in my gearbox for 2 reasons.

1-It provides better lube for the bushing in the output sleeve gear and I have seen considerably longer life there. It is designed for use with bronze bushings in transmissions.
2- It has seal additives that keep the seals soft.

Power or shifting has nothing to do with it. Gear protection is the same. Jim

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Thanks for posting Jim,

And as far as I'm concerned,
(THE MASTERS VOICE HAS SPOKEN)