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Thread: engine bad on oil
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03-05-2008, 06:56 AM #1
engine bad on oil
my 99 trans am is sucking up about a qourt of oil every 3 weeks i heard that the 98-00 models had problems with intakes but can anyone tell me what to do? and there is no signs og oil leaks anywhere on the block
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03-05-2008, 07:13 AM #2
You need to SeaFoam your motor!!!
http://www.ls1.com/forums/showthread...hlight=seafoam
http://www.ls1.com/forums/showthread...hlight=seafoam
A catch can after you SeaFoam will also help.
What kind of oil have you been running?
WELCOME!Don't be afraid of the bottle!!! Be afraid of your tune!!!
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03-05-2008, 07:44 AM #3
im running 5-30 right now but im going synthetic next oil change i just bought the about 2 months ago with 70000 miles
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03-05-2008, 07:47 AM #4
There are MANY synthetics out there and some are SHIT!!!
I would highly recommend you order a filter and oil from AMSOIL.
If you don't go that route I would buy a K&N filter and the Penzoil Platinum.
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03-05-2008, 08:26 AM #5
i heard mobil 1 is really good
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03-05-2008, 08:41 AM #6
moble 1 is good, i run castrol full synthentic but like ls2tuner said get some amsoil its good stuff
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03-05-2008, 08:56 AM #7
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03-05-2008, 09:07 AM #8
is AMSOIL synthetic or just regular man im stuck on this synthetic i just want the best for my car
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03-05-2008, 09:14 AM #9
It's all synthetic and the best on the market hands down.
http://www.amsoil.com/Index.aspx
https://www.amsoil.com/AmsoilLogin/F...CustomerType=3
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03-05-2008, 09:24 AM #10
thanks a lot and 5w-30 is fine right cause some say 10 -30
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03-05-2008, 09:50 AM #11
How many miles on the car?? Either weight is fine, I run 10w-40 full synthetic in mine.
The oil consumption issue is probably due to the crappy PVC system. The issue is that the LS1 has some ridiculously high manifold vacuum at the PCV port under engine braking, which sucks oil right past the PCV and into the engine. I converted over to breather filters on mine (just put breathers on each PCV port) and the oil consumption normal now.
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03-05-2008, 10:18 AM #12
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[]D [] []V[] []D- 1999 trans am
try posting in the tech section... better and more responses...
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03-05-2008, 10:54 AM #13
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03-05-2008, 06:29 PM #14
cool ill look into the brething valve
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03-06-2008, 11:19 AM #15
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03-06-2008, 11:22 AM #16
Seafoam wont do anything for oil consumption...odds are its the rings and you are burning the oil. I bought a catch can and it helps but it wont solve the problem...I go through the same amount, maybe a little less using 10w30 syn. I also think seafoam is hard on the seals and instead of buring the oil it will start leaking on your driveway.
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03-06-2008, 02:32 PM #17
Well I have to strongly disagree. Due to the nice oil consumption in the intake charge it makes the ring lands get packed with carbon and oil which makes the rings stick. So by sucking the SeaFoam it breaks down all the shit in the ring lands. I haven't had any issues with oil leaks! Maybe if you were dumb enough to dump a whole can in the oil.......
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03-06-2008, 04:07 PM #18
The Amsoil XL line is group 3. Not really synthetic.
Mobil 1 is group 3 it appears as well. A really thin one at that. My car used to consume oil when I used Mobil one. Switched to Redline and that stopped. I use German Castrol (thick 30 wt) now, no consumption issues.
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03-06-2008, 05:12 PM #19
alright so just get use to putting oil in it.and amsoil 10w-30 would be fine im going with that
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03-07-2008, 03:35 AM #20
Seafoam will not do anything to break down hard carbon. All seafoam does is make a smoke show. I have tried it myself....AUTORX is a better way to go and the catch can I use traps a few ounces of oil not a few quarts.
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