What type of transmission fluid to use?

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monarchd's picture


We purchased our first MB, It's a 1998 slk230. I'm a doityourselfer. My question is what type of tranny fluid do I use? "Example- dexronIII, type F Etc." Our car is an automatic. Any help or suggestions to make the job easier would be appreciated. Da'wiz

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johnmci's picture
North Saanich, BC
Joined: July 28th, 1994


1993 500SEL

The owners manual will say which type of fluid to use, so you need a product that meets that specification. Internet lore and in my experiences Mobil 1 ATF seems like a fine, and expensive, product to use. w123 owners (included) claim better shifting. W140 owners claim it makes their transmissions last longer.


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