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You need some old oil in there. Engines are the same you most engines the sump will hold a few hundred mil of oil. On some mercs the torque converter has a drain plug too which is nice.Not sure what to think of the info in that Vid. A bloke on here a while had a slipping trans on his V8 Stato. A simple service fixed all his problems. I never touch the trans on my ute instead I pay to have it done. Most trans places I have used seem to be of the opinion that flushing is a PITA. Instead they seem to opt for shorter service intervals, until the fluid starts looking better. Personally I like the idea of starting with all new fluid but NFI if it is a good idea or not really.
Not sure what to think of the info in that Vid. A bloke on here a while had a slipping trans on his V8 Stato. A simple service fixed all his problems. I never touch the trans on my ute instead I pay to have it done. Most trans places I have used seem to be of the opinion that flushing is a PITA. Instead they seem to opt for shorter service intervals, until the fluid starts looking better. Personally I like the idea of starting with all new fluid but NFI if it is a good idea or not really.