Helped solve the problem with shifting gears in Dodge Dakota. He pulled out the pan and filter and added 4 liters of fresh liquid there. Only driven 8000km since the last filter fluid change! The truck had weird issues shifting gears at random times, maybe it was temperature related, but the truck doesn't do a lot of long trips so it wasn't because it was too hot. Whatever the problem, I think this was the solution. I've used a different lube in other cars with good results, so it's worth a try if you run into problems.
Liqui Moly 2001 Valve Clean
15 Review
Synthetic engine oil LIQUI MOLY Molygen New Generation 5W-40, 4 l, 4 kg, 1 piece
46 Review
ACDelco GM Original Equipment 10-9243 Dexron VI Full Synthetic Auto Transmission Fluid - 1 qt: Top-Quality Performance for Your Vehicle
12 Review
Electric toothbrush Oral-B Pro 1 - 790 DUO, black
27 Review