Change gear oil in a 12 bolt

**big gear head** · #1 07-06-2024, 03:57 PM

Yes, unless you spill some.

**SS427** · #2 07-08-2024, 02:06 PM

Quote:

Originally Posted by big gear head

Yes, unless you spill some.

Don't spill it! You will have that unique smell in your shop/garage for weeks and it permeates everything!

I use only GM posi additive as I have had issues with anything else as far as clutch chatter.

**Too Many Projects** · #3 07-08-2024, 02:28 PM

Draining the old, used oil, is the strongest and worst, smell and there is no way to avoid getting that smell in a building, unless it is drained outside. The new oil, almost, smells good, compared to the old "stuff"...

**big gear head** · #4 07-09-2024, 12:54 PM

Quote:

Originally Posted by Too Many Projects

Draining the old, used oil, is the strongest and worst, smell and there is no way to avoid getting that smell in a building, unless it is drained outside. The new oil, almost, smells good, compared to the old "stuff"...

When I had my rear end shop I smelled like that every day for 15 years.

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