[DeTomaso] ZF gear oil--another question
bflesland at gmail.com
bflesland at gmail.com
Sat Apr 12 20:08:08 EDT 2014
I change my trans oil every 5k or every second year.
It's a piece of mind thing, at least for me.
Call it cheap insurance.
Cheers Bjoern
> Den 13. apr. 2014 kl. 00:09 skrev Christopher Kimball <chrisvkimball at msn.com>:
>
> So with all this talk about ZF gear oil, let me ask a questions:
> I have put about 25,000 miles on my ZF--the vast majority freeway miles
> (to Fun Rallies in Phoenix, Reno, etc.)--following safety-wiring and
> inspection. Am I OK in terms of gear oil, or is it time to change it?
> Thanks,
> Chris
> From: thomas at hax.se
> Date: Sun, 13 Apr 2014 00:33:08 +0200
> To: pantdino at aol.com
> CC: detomaso at poca.com
> Subject: Re: [DeTomaso] ZF gear oil
>
>
>> 12 apr 2014 kl. 19:12 skrev Pantdino <pantdino at aol.com>:
>>
>> Thomas,
>>
>> "And there is no "yellow metal" in our ZF:s, right?"
>>
>> I think that is not correct. "Yellow metal" refers to brass, which is what sy
> nchros are made of or at least what they were made of back in the day.
>
> I believe the synchros are all steel in the ZF.
>
>>
>> I read somewhere that GL5 oils coat the metal better than GL4s, but the proble
> m is that the coating is so adherent that when it comes off it can tear off a fe
> w molecules of the metal. Over time this can result in gear wear.
>>
>> My Abarth guru recommends Red Line MT-90 for my Fiat transaxle. It is a 75W90
> GL4 oil that is recommended for gearboxes and FRONT-WHEEL DRIVE transaxles but
> not rear wheel drive diffs.
>>
>> Unfortunately I don't know enough about transaxles to know why GL4 oil is best
> for a Fiat transaxle but wouldn't be good for a ZF or Ferrari unit. Or maybe i
> t would be??
>>
>> Jim Oddie
>> -----Original Message-----
>> From: Thomas Tornblom <thomas at hax.se>
>> To: detomaso <detomaso at poca.com>
>> Sent: Fri, Apr 11, 2014 11:44 pm
>> Subject: Re: [DeTomaso] ZF gear oil
>>
>> Pantdino skrev 2014-04-12 08:14:
>>> I think Mike misspoke / miswrote
>>>
>>>
>>>
>>> Most gear oil is GL5 and it is GL4 that is hard to find
>>>
>>>
>>>
>>> But the best oil for the ZF is Red Line 75W90NS--- the NS signifying
>>> "not so slippery" I presume.
>>>
>>> ANY oil that says it is OK to use in a limited slip diff will be TOO
>>> slippery for proper synchro function and will predispose to early
>>> synchro wear.
>>>
>>>
>>>
>>> GL4 oil is better for "yellow metal" gears but this is a fairly minor
>>> consideration in comparison to better lubrication for the diff portion
>>> of the ZF provided by the GL5 Red Line 75W90NS
>>
>> And there is no "yellow metal" in our ZF:s, right? So GL5 would be
>> appropriate, just as the owners manual says.
>>
>> That said, I have always used Shell Getriebeoel, which is a fully
>> synthetic GL4, but will now switch to some GL5. Might even try this RL
>> oil. :)
>>
>> Thomas
>>
>>>
>>>
>>>
>>> At least this was the conclusion reached by the ferrarichat group for
>>> use in "brand F" transaxles.
>>>
>>>
>>>
>>> Jim Oddie
>>>
>>> -----Original Message-----
>>> From: Corey Price <coreyjprice at gmail.com>
>>> To: MikeLDrew <MikeLDrew at aol.com>
>>> Cc: De Tomaso List <detomaso at poca.com>
>>> Sent: Fri, Apr 11, 2014 9:03 pm
>>> Subject: Re: [DeTomaso] ZF gear oil
>>> Mike,
>>>
>>> I thought GL-4 was the recommended oil, per Lloyd's website "FAQ" section.
>> Did
>>> I miss something?
>>>
>>> Corey
>>>
>>>
>>>
>>>> On Apr 11, 2014, at 9:41 PM, [1]MikeLDrew at aol.com wrote:
>>>>
>>>> In a message dated 4/11/14 12 32 13, [2]cwhamm at frontier.com writes:
>>>>
>>>> Also what is the best gear oil for
>>>> my ZF transaxle?
>>>>
>>>>>>> This is a very important question. I think there is a tendancy
>>>> among many people to just grab any old gear oil and throw it in there,
>>>> but the nature of a transaxle demands that one pays very close
>>>> attention to the manufacturer's recommendations. All gear oils are NOT
>>>> created equal!
>>>> In this case, the first thing to do is RTFM.
>>>> The manual specifically calls for SAE 80, AP GL5
>>>> (SAE 90 in Europe).
>>>> 7 1/2 pints of the stuff.
>>>> While it is very easy to find SAE 80-90 gear oil, it is surprisingly
>>>> difficult to find *GL5* gear oil, and that's the important part. GL5
>>>> oil has specific characteristics designed to work with the types of
>>>> synchros that our gearboxes have, which are different from most other
>>>> gearboxes, and definitely different from a typical differential/rear
>>>> axle.
>>>> If you go to most auto parts stores, there will be lots of gear oil on
>>>> the shelf but none of it will be GL5. The only place I have reliably
>>>> found GL5 is NAPA auto parts; it is made by Sta-Lube/CRC.
>>>> Here is the exact link to what you should buy:
>>>> [3][1]http://www.crcindustries.com/ei/product_detail.aspx?id=SL2473
>>>> It is normally sold in pints or gallons; since you need 7.5 pints and
>>>> there are 8 pints in a gallon, obviously it is to your advantage to buy
>>>> a gallon jug. My local NAPA store used to carry them, but I just had
>>>> to order a jug a couple of weeks ago as they only have pints now.
>>>> While you're at it, you might as well buy a gear oil pump, also by
>>>> Sta-Lube:
>>>> [4][2]http://www.crcindustries.com/ei/product_detail.aspx?id=SL4344
>>>> Harbor Freight has a better picture of it:
>>>> [5][3]http://www.harborfreight.com/sta-lube-gear-fluid-oil-pump-40714.ht
> ml
>>>> Using this pump has transformed my life. Normally filling a ZF gearbox
>>>> is a painful experience involving a lot of spilled gear oil and
>>>> profanity. This turns it into a breeze. Just put the end of the hose
>>>> in the side of the gearbox (where it's cleverly retained), and start
>>>> pumping until you feel silly. When oil starts drooling out the side,
>>>> you're done. Let it sit for a few minutes, give a few more pumps just
>>>> to be sure, then you're really done.
>>>> Mike (going to change my gearbox oil tomorrow as a matter of fact....)
>>>> _______________________________________________
>>>>
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>>> References
>>>
>>> 1. mailto:MikeLDrew at aol.com
>>> 2. mailto:cwhamm at frontier.com
>>> 3. [6]http://www.crcindustries.com/ei/product_detail.aspx?id=SL2473
>>> 4. [7]http://www.crcindustries.com/ei/product_detail.aspx?id=SL4344
>>> 5. [8]http://www.harborfreight.com/sta-lube-gear-fluid-oil-pump-40714.ht
> ml
>>> 6. mailto:DeTomaso at poca.com
>>> 7. [9]http://poca.com/mailman/listinfo/detomaso_poca.com
>>> 8. mailto:DeTomaso at poca.com
>>> 9. [10]http://poca.com/mailman/listinfo/detomaso_poca.com
>>>
>>>
>>>
>>>
>>>
>>>
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>>
>>
>> --
>> Real life: Thomas Toernblom Email: thomas at hax.se
>> Snail mail: Banvallsvaegen 14 Phone: +46 18 32 31 18
>> S - 754 40 Uppsala, Sweden Cellular: +46 76 209 8320
>>
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> References
>
> 1. http://www.crcindustries.com/ei/product_detail.aspx?id=SL2473
> 2. http://www.crcindustries.com/ei/product_detail.aspx?id=SL4344
> 3. http://www.harborfreight.com/sta-lube-gear-fluid-oil-pump-40714.html
> 4. http://poca.com/mailman/listinfo/detomaso_poca.com
> 5. http://poca.com/mailman/listinfo/detomaso_poca.com
> 6. http://www.crcindustries.com/ei/product_detail.aspx?id=SL2473
> 7. http://www.crcindustries.com/ei/product_detail.aspx?id=SL4344
> 8. http://www.harborfreight.com/sta-lube-gear-fluid-oil-pump-40714.html
> 9. http://poca.com/mailman/listinfo/detomaso_poca.com
> 10. http://poca.com/mailman/listinfo/detomaso_poca.com
> 11. http://poca.com/mailman/listinfo/detomaso_poca.com
> 12. http://poca.com/mailman/listinfo/detomaso_poca.com
> _______________________________________________
>
> Detomaso Forum Managed by POCA
>
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