Tom,

Glad to hear another person using engine oil, my tranny is relatively new and not abused, yet the Delo 400 has made far better shifting, how is winter being handled by your Rotella in the tranny by the way.

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99 Gurkha with OM616 IDI turbo

2015 Gurkha with OM616 DI turbo

2014 Rexton W with OM612 VGT