Author Topic: Differential Fluid / Oil - LSD  (Read 1559 times)

Benz280

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Differential Fluid / Oil - LSD
« on: July 01, 2021, 00:45:47 »
Conversations identify that LSD 's use a different oil .
In the event that special LSD oil was not used, what are the results.
Will change come the fall when the car is on the lift for that annual prep for sleep. 
1971 280SL 4 Speed
1995 E320 Cab
1965 Shelby GT350

TJMart

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Re: Differential Fluid / Oil - LSD
« Reply #1 on: July 01, 2021, 18:21:14 »
I just changed my rear differential oil but mine does not have a LSD. I experienced quite a bit of noise from the rear end when driving at higher speeds and was always told that it was normal for Pagodas and other older Mercedes. I replaced my 90W oil after calling Redline Oil and discussing what they had or recommended given the noise I was dealing with. They recommend their 75W140 NS GL-5 oil. I have to say the noise was greatly reduced and I have been happy with the quality of their products. I also use their transmission fluid with great results as well.https://www.redlineoil.com/

You may want to give them a call and discuss your LSD and get their recommendation.
Tony
1970 280SL, 4 Speed

MikeSimon

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Re: Differential Fluid / Oil - LSD
« Reply #2 on: July 01, 2021, 19:11:58 »
An LSD has "friction plates" in it. So, you would assume it needs a different oil than just hypoid gear oil.
1970/71 280SL Automatic
Sandy Beige
Parchment Leather
Power Steering
Automatic
Hardtop
Heated Tinted Rear Window
German specs
3rd owner

Benz Dr.

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Re: Differential Fluid / Oil - LSD
« Reply #3 on: July 01, 2021, 23:18:18 »
I use a synthetic 80 w 90 gear oil with an LSD additive.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC