I am doing a trans, torque convertor drain and filter replacement soon on our E320. I was wondering if anyone has tried full synthetic or semi synthetic trans oils and what you think.
I have a 2001.5 Dodge-cummins powered and had the trans beefed up. The builder installed just Dexron 3 where the manufacturer called for a semi synthetic ATF +3. When I serviced it after the rebuild, I put back in the ATF+3. It shifted alot more solidly.
SO.... Can I run that in the MBZ??

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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.

Yes, in that year & model.

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I'm planning to do the same job on my '92 300E soon. Same question: Can I use full or semi-synthetic or should I stick with just regular ATF?

Also, it has a rather hard 1-2 shift, especially when the a/c is on. Is there an easy way to soften the shift a little?

thanks

Mobil 1 Synthetic ATF, I am a big fan of all Mobil 1 Synthetics.

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