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Coolant: think about the cost of replacing the engine. There are more varieties than simply the green versus orange stuff. Make sure whatever you're using doesn't have a lot of phosphates and such.
The DOT 4+ brake fluid reference was probably to indicate that DOT 4 or 5.1 fluid is acceptable.
Dex III is Dex III is Dex III. Synthetic is always a good idea, again (like with the coolant) consider the cost of transmission replacement versus the additional cost of using the more expensive fluid every two or so years. Changing it regularly is probably the most important thing, but synthetic fluid will of course lower temps (heat is your primary enemy here).
Type F is the same stuff that your 240s wanted in the power steering system. Given that most car makers don't even bother to specify replacement intervals, just running fresh dino fluid and changing every 5-10 years is probably good enough. Use proper ATF, stuff marked as power steering fluid will usually have lots of stop leak additives.
I'd go with Mobil 1 5w30, but ir you're more comfortable with 10w30, so be it. However, the extended performance bullshit is something I don't really buy into. If you wanted to pay premium prices, go for Amsoil.
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alex
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