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Gearbox Oil

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Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#725424
Hi everyone

Just wondering what weight oil is recommended for a swing axle gearbox from a '67 Beetle. I think it's about due for a change.

Smiley
If you said I was a Volkswagen man, you'd be right.

13bwagon Officially Full-On Dubber

316 posts · joined Nov 2006 ·

#725425
i just use 80/90 about 2.5 l
and a little more on the swing box if you can get all the old oil out
BUY A REAL BUG A PRE S BUG...

grumble Son of Jim - Creator of Good

2,672 posts · joined Jun 2008 ·

#725426
80w90 is what mostly used,anything lighter is hard on the diff.

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#725428
Someone told me to put 80/140 gear oil in it.

But I thought that sounded too heavy.

Thanks guys.

Smiley
If you said I was a Volkswagen man, you'd be right.

13bwagon Officially Full-On Dubber

316 posts · joined Nov 2006 ·

#725429
80/140 i think might be Synthetic
and im not sure how it goes in the vw diff might be realy good?
but i know it about 2.5 X the price
BUY A REAL BUG A PRE S BUG...

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#725430
Not when you can 'borrow' it from work. 😂

Smiley
If you said I was a Volkswagen man, you'd be right.

13bwagon Officially Full-On Dubber

316 posts · joined Nov 2006 ·

#725436
mmm "borrow" me some please 😀
where is DAVE when you need him? get out of the drag section and have a look around 😉
BUY A REAL BUG A PRE S BUG...

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#725442
I wish I could. But postage would probably be a bitch.

HAHAHAHA

Smiley
If you said I was a Volkswagen man, you'd be right.

BRUTUS Officially Full-On Dubber

255 posts · joined Feb 2006 ·

#725721
Hi Smiley, QPL says it should be changed approx. every 2 (TWO) years -- regardless of actual mileage.
This goes for synthetic as well as mineral, as it is mainly due to additives decomposing with use and exposure to moisture, heat etc.
There is also a max. Mileage at which it should be changed. eg. 15,000 miles for early Beetle to 1500cc. Or whatever the manual says for other models.

Some A-C VW's we've bought appear to have a mixture of metal particles, water, lumps & rust in what is left of the "oil"... because almost no one ever changed it!

The usual 80W-90 and 85W-140 are mineral based, and are not "multigrade". They are cheap, so no excuse for not changing them regularly!
The fully synthetic 'equivalents' are 75W-90 and (usually) 75W-140 respectively (and are effectively "multigrade", so they perform better much when cold).
[These two common visc. grades 90 & 140, were re-defined in 2005-2007...]
QPL recommends 80W-90 or 75W-90 for Beetles. (I suppose the much thicker -140 grades could be used for worn/noisy diffs.)
ACE 30 & 40 oils: specifically engineered for your Air Cooled VW
delivered (free del.) throughout Yarra Valley / Ranges, & Gippsland areas. Also ACE 20, 50 & 90.
FOR SALE: ACE 30, 40 etc. Oil formulations & Trade-names.