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Some blow by, should I use a different oil, opinions??

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Old 10-05-2004, 08:35 PM
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Default Some blow by, should I use a different oil, opinions??

After my rebuild, I have been using mobil 1 10w30 oil and I have been getting some blow by. Leak down numbers come back good, wondering if changing to a non-synthetic oil would help. Something that isn't so "slippery". Just wondering what yours guys opinions are on this and any suggestions for a different oil.
Old 10-06-2004, 05:00 AM
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Default Re: Some blow by, should I use a different oil, opinions?? (Pfieffdog)

I am curious too, because after i did my boosted setup at like 65-70k on the motor I started running Valvoline 10w30 synthetic blend, because I heard going to a full synthetic might cause my seals to leak
Old 10-06-2004, 06:21 AM
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back up
Old 10-06-2004, 08:13 AM
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Default Re: (Pfieffdog)

Oh Really??? Do synthethic really make you seal leak??? Damn i used synthethic before and after turbo. Blow one or two ring after 5k miles.
Old 10-06-2004, 08:20 AM
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Default Re: (StolenTeg)

some engines may or may not leak when you go from dino to synthetic oil; depends on the miles and condition;
and no changing oil won't cure blowby; if you have blowby and good compression its your pcv system. honda oe pcv's suck; get a catch can w/ an oil drainback and source of vaccum (ventri effect in the exhaust or turbo inlet).
Old 10-06-2004, 08:26 AM
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Default Re: (ComputerJLT)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ComputerJLT &raquo;</TD></TR><TR><TD CLASS="quote">some engines may or may not leak when you go from dino to synthetic oil; depends on the miles and condition;
and no changing oil won't cure blowby; if you have blowby and good compression its your pcv system. honda oe pcv's suck; get a catch can w/ an oil drainback and source of vaccum (ventri effect in the exhaust or turbo inlet).</TD></TR></TABLE>

I thought catch cans weren't that effective on D series, correct me if i'm wrong though.
Old 10-06-2004, 09:14 AM
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Default Re: (RedNeckTruckDriver)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RedNeckTruckDriver &raquo;</TD></TR><TR><TD CLASS="quote">
I don’t see why it would be any different </TD></TR></TABLE>

I just used this persons engine bay for an example, not sure whos it is. The most effective way to run a catch can is like in the pic below, the only problem is that the D series doesn't have that 2nd nipple on the block.

Old 10-06-2004, 11:14 AM
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bump
Old 10-06-2004, 12:25 PM
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Default Re: (Pfieffdog)

theres a couple of different ways to go about setting up a catch can so that u can with any motor. Easiest way would be to put another nipple or perhaps 2 on the valve cover and run those to a can.
Old 10-06-2004, 12:50 PM
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Default Re: (Pfieffdog)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pfieffdog &raquo;</TD></TR><TR><TD CLASS="quote">

I just used this persons engine bay for an example, not sure whos it is. The most effective way to run a catch can is like in the pic below, the only problem is that the D series doesn't have that 2nd nipple on the block.
</TD></TR></TABLE>

My Z6 block


Catch can's help on any setup in my opinion.

Did you break the engine in with regular oil (Non-detergent preferred)?
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