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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 04-18-2010, 07:16 AM   #1
jeffmr
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Join Date: Apr 2010
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My Ride: 2003 325xi
Napa oils

Are napa oils ok to use for oil, differential, power steering and transmission?

The power steering is dextron III and the transmission I imagine would be dextron VI.
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Old 04-22-2010, 05:26 AM   #2
jeffmr
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Here are the specs for the fluids I have used, except the transmission fluid which I haven't changed yet,

Oil 5w-30 full synthetic SM/SL ILSAC GF-4, I'm guessing Valvoline quoting "premium protection, superior performance"

PSF ATF Dexron III Mercon "premium performance"

75w-90 Valvoline SynPower API GL-5 MT-1

ATF Gm approved Dexron VI Valvoline

I'm wondering if anyone has any feedback on if these will be high enough quality and last until the next change interval. I've read that the engine oil is not really a synthetic and not of the quality of an Amsoil or Castrol. I'm also wondering if I will need to change that after 3,000 miles or if it will last to 7,500. I've read that long life high performance oils are recommended for that. Is that oil or any of the others long life? Also, I saw somewhere where someone changed their oil filter and there was an 'up' side. I used a Napa Gold filter. Was it supposed to go in in a certain direction? I didn't see anything on the filter. Thanks.
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Old 04-22-2010, 05:27 AM   #3
jeffmr
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Also, would I use a brake degreaser to clean off the areas to ensure there are no leaks later?
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