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 05-17-2007, 02:50 AM
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need more options

mobil 1 here too
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Old 05-17-2007, 02:51 AM
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I ran the Quaker State High-RPM Synthetic Blend.
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Old 05-17-2007, 06:36 AM
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mobil 1 10w30 (90,xxx miles)
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Old 05-17-2007, 07:36 AM
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When i switched from mobile 1 to royal purple and i took it out to drop my friend off at home i noticed that it ran smoother and seemed like it had more power could just be me but anyway ive been using it ever since the first time and i wont settle for anything less
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Old 05-17-2007, 09:13 AM
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I have always used Mobil 1
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Old 05-17-2007, 09:43 AM
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With RP I Notice the lifters runner smooter
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Old 05-17-2007, 11:17 AM
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meezy weezy
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Old 05-17-2007, 01:02 PM
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GC 30w
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Old 05-17-2007, 01:10 PM
  #29  
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I use Archer oil...some claim it is more highly refined than other stuff, but some say its oil just like everything else...idk
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Old 05-17-2007, 02:25 PM
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Mobil 1 - 5w30
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Old 05-17-2007, 02:46 PM
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Nothing wrong with Race Grade Royal Purple, just don't expect it to perform good in a daily driver over a few 1000 miles. I wonder when Dwayne will respond.


German Castrol 0w30
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Old 05-17-2007, 03:02 PM
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AMSOIL baby, sware by the stuff. I run the full synthetic.
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Old 05-17-2007, 03:22 PM
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Originally Posted by buffman
Nothing wrong with Race Grade Royal Purple, just don't expect it to perform good in a daily driver over a few 1000 miles. I wonder when Dwayne will respond.


German Castrol 0w30

I change every other event Hitting it with over 200HP out of the hole will have you doing that and plugs
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Old 05-17-2007, 05:24 PM
  #34  
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Did a dyno test last year with my LT1 for Klotz and picked up 6 hp at peak and 10 hp elsewhere in the curve. I was running standard 10w30 in it before.
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Old 05-17-2007, 06:34 PM
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Originally Posted by 95greenZ
How long should you wait to change to synthetic on a fresh motor.
I'm no expert and dont know for sure. I would think at your first regular oil change or thereafter. When I got my new motor put in I asked my mechanic if synthetic would be a good idea. He just said to definitely not break it in with synthetic cause it will affect how the rings seat and everything seals up. I've heard that switching to synthetic will typically cause you to see more leaks too. Eh, I've been using mobile 1 10W30 and just changed my oil for the 2nd time with this motor last weekend.
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Old 05-17-2007, 08:43 PM
  #36  
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Rp 5-30
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Old 05-17-2007, 10:25 PM
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Originally Posted by TwoFast4Lv
I change every other event Hitting it with over 200HP out of the hole will have you doing that and plugs

Yeah nothing wrong with that. Good race oil like I stated
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Old 05-17-2007, 10:31 PM
  #38  
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mobil 1
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Old 05-17-2007, 11:45 PM
  #39  
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Vegetable....it has some crappy oil in it now, was short on cash after the LT swap so I had to go cheapy, gonna switch it to some quaker state.
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Old 05-18-2007, 01:26 AM
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i plan on switching like all my fluids to royal purple... well, at least engine/tranny/rear fluids...

although i may do amsoil....
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