As I have decided to keep my current transmission in it's current state, without a rebuild, I thought it might be prudent to check up on that state of the transmission by getting some oil analysis done on the transmission fluid. Unfortunately the sample wasn't going to be very good, as the transmission was out of the car, I wouldn't be able to follow any of the standard sample taking guidelines. I figured it would only be a baseline sample to check the condition and compare future samples against so it shouldn't be too crucial. Using the new sampling pump and sampling kit I got from ALS Tribology I drew a sample and sent it off for testing.
As the car had done ~94k miles I thought it would be time to refresh the cooling system as part of the build project. It also gave me an opportunity to remove the viscous clutch fan, as I have never liked these. This is similar to my dislike for sleeving engines that aren't low-revving V8's, I have no science to support why I don't like them, I just don't. My main driver here was to upgrade to something better than stock with increased reliability. As with my other parts decisions I also wanted to stick to something that for the most part came as a ready to install kit specifically for the E46 M3. Fortunately (or unfortunately) there was a lot of options to chose from when it came to cooling upgrade for the E46 M3. I compiled a list of some of the options I reviewed / considered: Zionsville Radiator Fluidyne Radiator and Oil Cooler C&R Radiator and Oil Cooler Mishimoto Radiator and Oil Cooler CSF Radiator and Oil Cooler I am sure there is more opti...



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