![]() | Home > Maintenance & Mods (L322) > Red oil coming out of zf 5hp24 gearbox |
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doclees Member Since: 24 Jun 2015 Location: PA Posts: 672 ![]() ![]() ![]() |
In this thread it has been brought to light that Mobil LT 71141 is a 20+ year old semi synthetic formula that goes by other labels. It has been shown that ZF, the maker of the transmission in question, made an agreement with Pentosin to produce a ZF LT 71141. Pentosin, which clearly has the specs and formula to ZF 71141, has made a fully synthetic version that says is equivalent and maybe even superior due to the fact it is fully synthetic. No where in this thread has anyone brought to light just what additives are in Mobil branded 71141 that are not in any other label LT 71141. By the theory that only Mobil branded LT 71141 is the only correct verson then anyone in the U.S with a ZF 5hp24 is screwed since this was never available here. Personally I like choice and knowing the truth about products. I could pay $25/liter from Amazon for Febi brand or $10/liter through new-part. I doubt the Amazon version is any better. Now I know that Pentosin appears to be an improved version for pennies more I'll go that way even though the transmission with Febi fluid has gotten smoother, lost the TC rumbles and I just broke 21.7 mpg/us. |
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Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8374 ![]() ![]() ![]() |
That's the problem dolph, no one knows, not enough info from anyone apart from other manufacturers saying theirs is the same or better.... how do we know....??? they will say anything to sell their stuff...
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RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 982 ![]() ![]() |
In my view the issue is that the correct friction modifier pack has to be used in the fluid to produce the static and dynamic friction characteristic that is required for the friction elements particularly the torque converter lock-up clutch, which is designed to continuously slip at low speed to isolate torsional vibration in the driveline as it has no damper fitted. ZF say that the 5HP24 requires the friction characteristics to fall between these boundaries :
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dolph34 Member Since: 14 Sep 2015 Location: Kildare Posts: 1724 ![]() ![]() ![]() |
Mine has the zf6 box as does plenty of BMW ( and others ) Liquid moly is approved for this box in BMWs so would that not make it suitable for mine.
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Andy K Member Since: 06 Jun 2016 Location: GL Posts: 48 ![]() ![]() ![]() |
I would be interested to know where it says liquid molley 1800? is approved for the ZF6.
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RR P38 Member Since: 12 Oct 2013 Location: Sydney Posts: 215 ![]() ![]() ![]() |
Your trans requires TYK 500050 spec does it not? http://www.zf.com/global/media/en_zf/lubricantslists/TE-ML_11.pdf Liqui Moly Top tech 1800 has TYK 500050 spec http://www.liqui-moly.de/liquimoly/produkt...mp;land=DE It also meets the BMW spec BMW 83 22 0 142 516 |
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dolph34 Member Since: 14 Sep 2015 Location: Kildare Posts: 1724 ![]() ![]() ![]() |
http://www.liqui-moly.de/liquimoly/produkt...redirect=1
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dolph34 Member Since: 14 Sep 2015 Location: Kildare Posts: 1724 ![]() ![]() ![]() |
Hi RR38. Sorry. I posted the link before I read yours It does seem the liquid moly claims to be a direct replacement oil for the ZF6 in my 3.6 tdv8
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RR P38 Member Since: 12 Oct 2013 Location: Sydney Posts: 215 ![]() ![]() ![]() |
I totally respect what RRPHIL has to say on this subject.
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dolph34 Member Since: 14 Sep 2015 Location: Kildare Posts: 1724 ![]() ![]() ![]() |
Top Tec ATF 1800
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dolph34 Member Since: 14 Sep 2015 Location: Kildare Posts: 1724 ![]() ![]() ![]() |
Top Tec ATF 1800
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doclees Member Since: 24 Jun 2015 Location: PA Posts: 672 ![]() ![]() ![]() |
Here is the response Febi sent.
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smiler289 Member Since: 11 May 2016 Location: matlock Posts: 124 ![]() ![]() |
Hi. Just updating my thread. Since changing the oil temperature sensor in the zf 5hp24 gearbox, and discovering the fluid that was in it was red, filling it with 7 to 8 litres of what I have been advised is the correct fluid mobile atf lt71141. The gearbox has started to make a little whine noise when changing from 1st to 2nd and slightly when changing from 2nd to 3rd.
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smiler289 Member Since: 11 May 2016 Location: matlock Posts: 124 ![]() ![]() |
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