I would like to switch over to Redline transmission oil but am somewhat confused over what grade to lose. The manual only says "Automatic Transmission fluid for Manual transmissions" Can I use MTL type which is supposed to be 70W80 GL-4 gear oil (SAE 5W30/10W30 engine oil viscosity) or should I go with synthetic ATF or D4 ATF. I know that an E36 M3 manual transmission went with D4 ATF, but I'm not sure if that is the correct one for the Getrag 5-speed in my car. Please advise.

Link to Redline Oils

Thanks for the help,
Giancarlo

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PAST MB's: 2006 E55 AMG | 1986 190E 2.3-16

I run redline MTL in my 16V racecar, tried Mobil 1 ATF first but the fluid temp was way too high after 40-50 miles of racing.
MB installed a straight weight "oil" from the factory but now reccomends TYPE A ATF & that is what you will get at dealer for about $17 for .5 liter.

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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
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44 years foreign automotive repair
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MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Thanks MB DOC,

I'm going with the MTL.

Giancarlo

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PAST MB's: 2006 E55 AMG | 1986 190E 2.3-16