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    Why is royal purple... purple??

    well, thanks for all the answers, lol. so far i've tried m1, castrol tws 10w60, amsoil, and rp. i've heard a lot of good things about rp so i figured i'd give it a shot. havent tried redline yet mainly due to the price of it around here. ok, serious question.. if you had to list your favorites...
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    Why is royal purple... purple??

    hey guys, i currently have a 97 bmw e39 540i 6spd. its a 97 so its a non vanos engine(m62). im currently running rp 10w30 in the engine and synchromax in the trans. i've used the synchro before in my e36 m3, good results in both cars. switched from redline d4atf to the synchromax in the m3 and...
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    Militec-1

    i've used militec on my my bushmaster m4 carbine and sig sauers for some time now with good results, excellent lubricant for firearms. but till reading this post i've never heard of it being used in a car. i have a bmw 97 e39 540i 6spd, rp 10w30 in the engine and synchromax in the trans, good...
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    ARX rinse oil for '99 BMW 528

    i own a 95 M3 with 130k on her now. i used autorx mainly to do a safe switch to synthetic oil. the treatment worked great, used 10w30 for both phases and treatments. i recently changed the valve cover gasket and was pleasantly suprised to see not a spec of sludge or varnish anywhere. this stuff...
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    Kerosene/Paint Thinner in engine oil and fuel?

    the only solvent's i have used in the fuel tank is toluene or xylene. toulene is 114 octane, works great as a fi cleaner and octane booster. here is an equation to use toluene as a octane booster, example, ((10galx93octane)+(1gal toluenex114octane))/11gal total=approx 94.90 octane
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    Auto Rx on the way, any added tips for using it?

    car is a 95 bmw m3 3.0L inline six. has 120k on it. i got some auto rx on the way. just wondering if any of you guys have used it on an e36 bmw. and would like to know any results you have from using it?
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