Thanks, I just ordered 3 quarts from your link.....mines got 26k on the factory transmission fill, I look forward to smooth(er) shifting!
Because I couldn't buy 2.5 quarts?....not sure of your question, the owners manual calls for 2 quarts of the GM transmission oil, Xtreme above has determined that 2.5 quarts works better....why only 3 quarts?
Recommended for NV4500 and GV overdrive units because it has about 1/2 the EP additives of a GL-5 lube.Unlike the Synchromesh, the 75W-90 has extreme pressure additives.
Correct, a GL-5 fluid will be a bit more abrasive. The "attacking" of yellow metals was only an issue with initial variations of GL-5 lubricants and is no longer an issue. The concept here is that the extreme pressure additives function by creating a chemical reaction when under pressure and heat. That chemical reaction creates a sacrificial film. In the case of ZDDP, this is a phosphate glass that protects the two moving parts. It is a sacrificial film because it peels away after use. The problem is that this "peeling away" takes a little bit of the surface of the synchro with it, which will be a softer yellow metal alloy. The more extreme pressure additive you have, the thicker that protective film will be and the more it will erode the synchros. On the flipside, having too little can cause wear in other areas such as gears and bearings. It is important to note the conditions under which this chemical reaction occurs. Most normal driving will never see these conditions which is why the Synchromesh has worked excellently for many of us including myself. However, higher power levels demand better protection.Recommended for NV4500 and GV overdrive units because it has about 1/2 the EP additives of a GL-5 lube.
Also does not attack brass synchronizers or "yellow metal" parts.
The amsoil runs $10+/quart cheaper than the fluid from the Ram dealer.
A warm drain will evacuate all but an inconsequential amount of the old fluid. I wouldn't worry about flushing a manual transmission.I thought you were going to do a flush. I am planning to do one at 10k. I dont like the idea of adding high quality fluids and then they get contaminated with dirty/crappy fluids.