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M1 Oil Change...Now Loppy Idle

 
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LSsport38
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PostPosted: Fri Mar 04, 2011 5:17 pm    Post subject:  M1 Oil Change...Now Loppy Idle Reply with quote

So I changed the oil in my LS with 130 kms the other night with M 1 's 2000 high mileage oil and used a M1 filter. Now when the engine is running at idle, it seems to bounce around from 600rpm to 8 or 900rpm. It also is running a little warmer then usual of like 75 (bad stat??) now closer to 90 with the m1 oil.

I've been using Gm oil and filters for the past few years. I know some after market filters have been the cause for no oil curculation through the filter, kind of worried this M1 filter is gonna screw up my engine.

Any input??
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chibiblacksheep
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PostPosted: Fri Mar 04, 2011 5:59 pm    Post subject:   Reply with quote

Did you use the proper weight?

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IffyG
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PostPosted: Fri Mar 04, 2011 6:21 pm    Post subject:  Re: M1 Oil Change...Now Loppy Idle Reply with quote

LSsport38 wrote:
So I changed the oil in my LS with 130 kms the other night with M 1 's 2000 high mileage oil and used a M1 filter. Now when the engine is running at idle, it seems to bounce around from 600rpm to 8 or 900rpm. It also is running a little warmer then usual of like 75 (bad stat??) now closer to 90 with the m1 oil.


Assuming your temps are in *C, 90ish is about where it should be with a stock thermostat.

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LSsport38
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PostPosted: Fri Mar 04, 2011 7:00 pm    Post subject:   Reply with quote

I'm running 5W-30.

Yes it's in celsius. It use to run at the normal 90, then i had a coolant flush about a year ago, since then it hovers around 70 when being driven. Think some debree is in the stat keeping it open?
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PostPosted: Fri Mar 04, 2011 7:02 pm    Post subject:   Reply with quote

If it's actually running at 70 C, I'm surprised you aren't throwing a code for low engine coolant temps. I wouldn't be surprised if you have a stuck t-stat. If you are mechanically minded, replacing the T-stat on a 3800 is a cake walk. Might be worth changing out.

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LSsport38
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PostPosted: Fri Mar 04, 2011 7:44 pm    Post subject:   Reply with quote

Going to be a project for this weekend, when it warms up. Not really in the mood to work in the driveway at -20celsius...damn winter.

Can't go wrong in changing it $11 bucks for the acdelco T-stat. Is there much coolant lost when pulling the housing? Is there a gasket in the housing too?
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habermehl
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PostPosted: Fri Mar 04, 2011 7:59 pm    Post subject:   Reply with quote

LSsport38 wrote:
Going to be a project for this weekend, when it warms up. Not really in the mood to work in the driveway at -20celsius...damn winter.

Can't go wrong in changing it $11 bucks for the acdelco T-stat. Is there much coolant lost when pulling the housing? Is there a gasket in the housing too?


yes there is a gasket .

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IffyG
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PostPosted: Fri Mar 04, 2011 8:08 pm    Post subject:   Reply with quote

LSsport38 wrote:

Can't go wrong in changing it $11 bucks for the acdelco T-stat. Is there much coolant lost when pulling the housing? Is there a gasket in the housing too?


You might lose a cupful of coolant, if that. Just put down some towels around the t-stat housing to catch whatever comes out.

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00impala123
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PostPosted: Fri Mar 04, 2011 8:33 pm    Post subject:   Reply with quote

Just do it when the car is completely cooled off (like havent driven it yet for the day) and you will not lose much coolant at all.

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