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    Thoughts on GC in an 06 4.6 rwd Northstar?

    Partly for the sake of simplicity since I like to run the same oil all the cars, partly because I'm convinced it's an excellent oil, I'd like to run Castrol Syntec 0w30 "GC" in an 06 Cadillac SRX with the 4.6L Northstar. This is the LH2 rear wheel drive / all wheel drive Northstar variant, used...
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    Prestone Coolant Flush? Possible ATF in Coolant

    I have a possible Dexron III ATF in my DexCool coolant situation. This is Dexron III ATF that is in the power steering system. The coolant on the dipstick in the overflow tank looks normal (hard to say since Dexcool and Dexron III are both red), but the Dexron III in the power steering fluid...
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    Jeep Grand Cherokee - RP 75w140 gear oil

    I'm about to do a rear differential fluid change on a 99 Grand Cherokee 2wd I6 with 78K miles. Pretty sure I'm going to go with Royal Purple 75w140, which is on the heavier end of the recommended weights. Picked it because I wanted an over the counter, 75w140, synthetic, with the limited slip...
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    Need for AutoRX if no issues & good history?

    I used to think all additives were bunk, but research here seems to indicate that if you have a known problem, an appropriate additive may very well be the solution - e.g. if you've got sludge or a sludge prone engine, AutoRX sure seems like it will take care of that. Or let's say I buy a used...
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    Pennzoil Platinum - same price as GC +/- $0.50???

    I see that a good number of people are hot on Pennzoil Platinum in its various weights, but most comments I read about it also emphazise its good price as a plus, and kind of apologize for the fact that it is a group III rather than a PAO by pointing out that 1) it's not all about base stock, PP...
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    GC Green 0w30 2001 BMW 740iL 4.4L

    Miles on oil 5722 (sample pulled, oil not changed) Miles on car 79033 Makeup oil added - zero Elements in parts per million ALUMINUM 2 CHROMIUM 0 IRON 7 COPPER 3 LEAD 4 TIN 1 MOLYBDENUM 2 NICKEL 0 MANGANESE 0 SILVER 0 TITANIUM 0 POTASSIUM 0 BORON 2 SILICON 4 SODIUM 3 CALCIUM 2770 MAGNESIUM...
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    Plenty of new GC in DFW - Trying Green in BMW 4.4 V8 and LS1

    First off, wanted to let y'all know that there seems to be plenty of M05 and M06 Gold German Castrol at the Autozones around Dallas - the one on Inwood, the one on Garland Road, and the one at the corner of Kingsley and Plano Road all had it this weekend. In my search for a single oil that will...
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