LS1TECH - Camaro and Firebird Forum Discussion

LT1-LT4 Modifications 1993-97 Gen II Small Block V8
View Poll Results: What oil is in your LT1
Castrol Syntec
47
25.41%
royal purple
72
38.92%
AMSOIL
26
14.05%
You don't care they are all the same
40
21.62%
Voters: 185. You may not vote on this poll

What oil is in your LT1

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Old May 16, 2007 | 06:32 PM
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F8L LT1 Z28's Avatar
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Default What oil is in your LT1
What oil is in your LT1
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Old May 16, 2007 | 06:52 PM
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Mine has never had anything but Mobil 1
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Old May 16, 2007 | 06:58 PM
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Did they come from the factory with Mobil 1?
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Old May 16, 2007 | 06:59 PM
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Valvoline Synpower 5w30 runs very well in mine. The Oil pressure gauge smooths out. With Conventional it tended to jump a little bit by a couple of pounds at idle. I sometimes use a synthetic additive like lucas but that is every couple of oil changes. Also, it helps with any sort of "tick" from valve train.

-Chuck

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Old May 16, 2007 | 06:59 PM
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Regular castrol gtx high milage. non synthetic
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Old May 16, 2007 | 07:05 PM
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Originally Posted by fnslowZ
Did they come from the factory with Mobil 1?
No


Ok, other than the original oil, it's only had mobil 1.
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Old May 16, 2007 | 07:11 PM
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Royal purple did well for the car at 100K! Could definitely feel the difference once I changed over and haven't gone back.
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Old May 16, 2007 | 07:14 PM
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It's an LT1, I'm glad more stays in than out....most of the time.
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Old May 16, 2007 | 07:19 PM
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Originally Posted by fastbird96
No


Ok, other than the original oil, it's only had mobil 1.
I did not mean that in a bad way, some one told me that they came with mobil 1
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Old May 16, 2007 | 07:20 PM
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Originally Posted by azmarkus
It's an LT1, I'm glad more stays in than out....most of the time.
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Old May 16, 2007 | 09:09 PM
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Originally Posted by fastbird96
Mine has never had anything but Mobil 1
Same.
Mobil 1
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Old May 16, 2007 | 10:37 PM
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When they came out with the lt1 for the vette, They recommended mobil 1. And I think to this day its the offical oil for vette engines.
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Old May 16, 2007 | 10:40 PM
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mobil 1
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Old May 16, 2007 | 10:43 PM
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mobil 1
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Old May 16, 2007 | 11:25 PM
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Mobil 1
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Old May 16, 2007 | 11:40 PM
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you people break motors in with mobile 1 oil?

if so which one?

.. i have a motor that has never been started and wanna make sure everything is cool. its ben sitting a while.
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Old May 16, 2007 | 11:48 PM
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never use a synthetic oil for break in
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Old May 16, 2007 | 11:48 PM
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75w140 in the old LT1!
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Old May 17, 2007 | 01:04 AM
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How long should you wait to change to synthetic on a fresh motor.
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Old May 17, 2007 | 01:42 AM
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I used to run Mobil 1. I still do in the wifes car.

Once I started running alot of juice I went to Royal Purple Raceing #51 or 20w-50
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