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Old 10-30-2022, 06:50 PM   #8 (permalink)
ConnClark
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Join Date: Jun 2008
Location: Richland,WA
Posts: 985

Das Schlepper Frog - '85 Mercedes Benz 300SD
90 day: 23.23 mpg (US)

Gentoo320 - '04 Mercedes C320 4Matic
90 day: 22.44 mpg (US)
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Quote:
Originally Posted by me and my metro View Post
My only concern would be switching a German car from GL4+ to GL5. Try that with a manual transmission and the syncros will not work correctly. If your car has clutch positracks they may work differently.
The GL4+ recommendation is for GL4 or higher. The GL rating specifies the amount of extreme pressure rating additives are added. At least according to AmsOil. So going to GL5 shouldn't be an issue. Also the diff fluid I used is on the Mercedes approved list.

https://blog.amsoil.com/the-differen...gl-5-gear-oil/
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