Thread: Poll: Mobil 1 ATF or 10W30 for W123 (240D, 300D etc...)'s MANUAL transmission.
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Old 04-18-2003, 06:29 PM
rwthomas1 rwthomas1 is offline
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Join Date: Nov 2002
Location: Wakefield, RI
Posts: 2,145
I go for Mobil 1 10W30 because Red Line MT fluid also has a 5W30

Redline MT has friction modifiers that let the synchros in the transmission work better. I have had Mobil1, Royal Purple, Amsoil and generic lube in my VW and the GM truck manual transmissions. All these lubes feel notchy. NOTHING shifts as well at the Redline. SMMOOOOTTHH! Try it and you'll be a believer. RT
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